谁能帮我解决error C2046: illegal case错误？

[skolf]

代码如下：
#include<iostream.h>
#include<string.h>
class stu
{ private:
char name[20];
double math,chinese,english,average,sum;
public:
stu()
{
}
stu(char n[20],double ma,double chin,double eng)
{
strcpy(name,n);
math=ma;
chinese=chin;
english=eng;
}
double getsum()
{
sum=chinese+english+math;
return sum;
}
double getaver()
{
average=getsum()/3;
return average;
}
friend void main();
};


void main()
{
cout<<"请选择您需要的操作！"<<endl;
cout<<"(0)数据录入"<<endl;
cout<<"(1)增加人员"<<endl;
cout<<"(2)删除人员"<<endl;
cout<<"(3)修改数据"<<endl;
cout<<"(4)按总成绩查询"<<endl;
cout<<"(5)按姓名查询"<<endl;
cout<<"(6)输出所有学生的数据"<<endl;
cout<<"(7)按总分查询排名"<<endl;
cout<<"(8)按语文查询排名"<<endl;
cout<<"(9)按数学查询排名"<<endl;
cout<<"(10)按英语查询排名"<<endl;
cout<<"(11)输出语文不及格的学生数据"<<endl;
cout<<"(12)输出数学不及格的学生数据"<<endl;
cout<<"(13)输出英语不及格的学生数据"<<endl;
cout<<"选择相关操作请输入相对的括号里的阿拉伯数字！"<<endl;
char p;char w;
stu *s[50];
int i=0;
int j=0;
int flag2=0;
do
{
cin>>p;
if((p>='0'&&p<='13'))
flag2=1;
else
cout<<"指令错误！请重新输入："<<endl;
}while(flag2==0);
do{
switch(p)
{
case '0':
{
char c;
char name[20];double math,chinese,english;
do{
cout<<"请输入姓名"<<endl;
cin>>name;
cout<<"请输入数学成绩："<<endl;
cin>>math;
cout<<"请输入语文成绩："<<endl;
cin>>chinese;
cout<<"请输入外语成绩："<<endl;
cin>>english;
cout<<"姓名"<<name<<"数学成绩"<<math<<"语文成绩"<<chinese<<"外语成绩"<<english<<endl;
j++;
s[i]=new stu(name, math, chinese, english);
i++;
cout<<"数据录入成功，想继续录入吗(y/n)"<<endl;
cin>>c;
flag2=0;
do
{
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl;
cin>>c;
}
else
flag2=1;
}while(flag2==0);
}while(c=='y');
break;
}

case '1':
{
char name[20];double math,chinese,english;
char c;
do
{
cout<<"请输入您要增加的学生的姓名："<<endl;
cin>>name;
cout<<"请输入数学成绩："<<endl;
cin>>math;
cout<<"请输入语文成绩："<<endl;
cin>>chinese;
cout<<"请输入外语成绩："<<endl;
cin>>english;
cout<<"姓名"<<name<<"数学成绩"<<math<<"语文成绩"<<chinese<<"外语成绩"<<english<<endl;
j++;
s[i]=new stu(name, math, chinese, english);
i++;
cout<<"数据录入成功，想继续录入吗(y/n)"<<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl;
cin>>c;
}
}while(c=='y');
break;
}
case '2':
{
char name[20];int flag3=0;char c;
do{
cout<<"请输入您要删除的学生姓名："<<endl;
cin>>name;
for(int h=0;h<i;h++)
{
if(strcmp(name,s[h]->name)==0)
{
flag3=1;
i--;
do{
s[h]=s[h+1];
h++;
}while(h<=i);
}
}
if(flag3==0)
cout<<"您要求删除的对象本来就不存在！请检查输入的正确性！";
cout<<"要继续删除吗？(y/n)"<<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl;
cin>>c;
}
}while(c=='y');
break;
}
case '3':
{
char name[20];double mat,chin,eng;flag2=0;
char c;
do
{
cout<<"请输入您要修改的学生的姓名："<<endl;
cin>>name;
for(int h=0;h<i;h++)
{
if(strcmp(name,s[h]->name)==0)
{
flag2=1;
cout<<"请输入新的数学成绩："<<endl;
cin>>mat;
cout<<"请输入新的语文成绩："<<endl;
cin>>chin;
cout<<"请输入新的外语成绩："<<endl;
cin>>eng;
s[h]->chinese=chin;
s[h]->math=mat;
s[h]->english=eng;
cout<<"数据修改成功！";
}
}
if(flag2==0)
{
cout<<"您要修改的学生本来就不存在！请检查重新输入！"<<endl;
}
cout<<"想继续修改吗(y/n)"<<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl;
cin>>c;
}
}while(c=='y');
break;
}
case '4':
{
double t;char c;
do
{
int flag1=0;
cout<<"请输入你要查询学生的总成绩"<<endl;
cin>>t;
for(int q=0;q<i;q++)
{
if(s[q]->getsum()==t)
{
flag1=1;
cout<<"您要查询的学生是："<<(*s[q]).name<<endl;
}
}
if(flag1==0)
cout<<"对不起！您要查询的学生不存在！"<<endl;
cout<<"您想继续查询吗?(y/n)"<<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl;
cin>>c;
}
}
while(c=='y');
break;
}

case '5':
{
char n[20];int j=0;char c;
do{
int flag=0;
cout<<"请输入你要查询的学生姓名"<<endl;
cin>>n;
for(int j=0;j<i;j++)
{
if(strcmp(n,(*s[j]).name)==0)
{
flag=1;
cout<<"您要查询的学生是："<<(*s[j]).name<<endl;
cout<<(*s[j]).name<<"的总成绩成绩是"<<(*s[j]).getsum()<<endl<<"平均成绩是："<<(*s[j]).getaver()<<endl;
}
}
if(flag==0)
cout<<"对不起!您要查询的学生不存在!"<<endl;
cout<<"您想继续查询吗?(y/n)"<<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl;
cin>>c;
}
}
while(c=='y');
break;
}
case '6':
{
cout<<"本系统所有学生数据如下："<<endl;
if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl;
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<(*s[k]).getsum()
<<"平均分："<<" "<<(*s[k]).getaver()<<endl;
}
break;
}
case '7':
{
int t;stu b;

cout<<"本系统所以学生排名如下："<<endl;
for(int x=0;x<i-1;x++)
{
t=x;
for(int y=x+1;y<i;y++)
{
if((s[t]->getsum())<(s[y]->getsum()))
t=y;
if(t!=x)
{
b=*s[x];
*s[x]=*s[t];
*s[t]=b;
}
}
}
if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum()
<<"平均分："<<" "<<s[k]->getaver()<<endl;
}
break;
}
case '8':
{
int t;stu b;

cout<<"本系统所以学生语文排名如下："<<endl;
for(int x=0;x<i-1;x++)
{
t=x;
for(int y=x+1;y<i;y++)
{
if((s[t]->chinese)<(s[y]->chinese))
t=y;
if(t!=x)
{
b=*s[t];
*s[t]=*s[x];
*s[x]=b;
}
}
}

if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum()
<<"平均分："<<" "<<s[k]->getaver()<<endl;
}
break;
}
case '9':
{
int t;stu b;

cout<<"本系统所以学生数学排名如下："<<endl;
for(int x=0;x<i-1;x++)
{
t=x;
for(int y=x+1;y<i;y++)
{
if((s[t]->math)<(s[y]->math))
t=y;
if(t!=x)
{
b=*s[t];
*s[t]=*s[x];
*s[x]=b;
}
}
}

if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum()
<<"平均分："<<" "<<s[k]->getaver()<<endl;
}
break;
}
case 'a':
{
int t;stu b;

cout<<"本系统所有学生英语排名如下："<<endl;
for(int x=0;x<i-1;x++)
{
t=x;
for(int y=x+1;y<i;y++)
{
if((s[t]->english)<(s[y]->english))
t=y;
if(t!=x)
{
b=*s[t];
*s[t]=*s[x];
*s[x]=b;
}
}
}

if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum()
<<"平均分："<<" "<<s[k]->getaver()<<endl;
}
}
break;
}
case 'b':

{
int t;
cout<<"语文不及格的学生数据如下："<<endl;
if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl;
if((s[t]->chinese<60))
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<(*s[k]).getsum()
<<"平均分："<<" "<<(*s[k]).getaver()<<endl;
}
break;
}
case 'c':

{
int f;
cout<<"数学不及格的学生数据如下："<<endl;
if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl;
if((s[f]->math<60))
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<(*s[k]).getsum()
<<"平均分："<<" "<<(*s[k]).getaver()<<endl;
}
break;
}
case 'd':

{
int g;
cout<<"外语不及格的学生数据如下："<<endl;
if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl;
if((s[g]->english<60))
for(int k=0;k<i;k++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math
<<"外语："<<" "<<s[k]->english<<"总分："<<" "<<(*s[k]).getsum()
<<"平均分："<<" "<<(*s[k]).getaver()<<endl;
}
break;
}
cout<<"您想继续进行其他操作吗?(y/n)"<<endl;
int flag4=0;
do
{
cin>>w;
if(w!='y'&&w!='n')
cout<<"指令错误！请重新输入！"<<endl;
else
flag4=1;
}while(flag4==0);
if(w=='y')
cout<<"请输入操作代码(0 录入/1 增加人员/2 删除人员/3 修改数据/4 按总分查询/5 按姓名查询/6 显示所有成员数据/7 按总分排名/8 按语文排名/9 按数学排名/a 按英语排名/b 显示语文不及格的成员数据/c 显示数学不及格的成员数据/d 显示英语不及格的成员数据)"<<endl;
cin>>p;
}while(w=='y');
for(int x=0;x<i;x++)
{
delete s[x];
cout<<"delete all members!"<<endl;
}

}


/////////////出现错误情况：
lx.cpp
D:\我的文档\桌面\lx.cpp(398) : error C2046: illegal case
D:\我的文档\桌面\lx.cpp(415) : error C2046: illegal case
D:\我的文档\桌面\lx.cpp(432) : error C2046: illegal case
执行 cl.exe 时出错.

[lori227]

{}没对应上
多打了 } 或者少打了{ 自己检查下 ~~

[lori227]

break;
} // 这个多的
case 'b':

//其他自己找吧

[「已注销」]

#include <iostream>
#include <string>
#include <sstream>

using namespace std;

class stu
{
private:
    char name[20];
    double math, chinese, english, average, sum;
public:
    stu()
    {
    }
    stu(char n[20], double ma, double chin, double eng)
    {
        strcpy(name, n);
        math = ma;
        chinese = chin;
        english = eng;
    }
    double getsum()
    {
        sum = chinese + english + math;
        return sum;
    }
    double getaver()
    {
        average = getsum() / 3;
        return average;
    }
    friend void main();
};

void main()
{
    cout << "请选择您需要的操作！" << endl;
    cout << "(0)数据录入" << endl;
    cout << "(1)增加人员" << endl;
    cout << "(2)删除人员" << endl;
    cout << "(3)修改数据" << endl;
    cout << "(4)按总成绩查询" << endl;
    cout << "(5)按姓名查询" << endl;
    cout << "(6)输出所有学生的数据" << endl;
    cout << "(7)按总分查询排名" << endl;
    cout << "(8)按语文查询排名" << endl;
    cout << "(9)按数学查询排名" << endl;
    cout << "(10)按英语查询排名" << endl;
    cout << "(11)输出语文不及格的学生数据" << endl;
    cout << "(12)输出数学不及格的学生数据" << endl;
    cout << "(13)输出英语不及格的学生数据" << endl;
    cout << "选择相关操作请输入相对的括号里的阿拉伯数字！" << endl;
    char p;
    char w;
    stu *s[50];
    int i = 0;
    int j = 0;
    int flag2 = 0;
    do
    {
        cin >> p;
        if ((p >= '0' && p <= '13')) flag2 = 1;
        else cout << "指令错误！请重新输入：" << endl;
    }
    while (flag2 == 0);
    do
    {
        switch (p)
        {
        case '0':
            {
                char c;
                char name[20];
                double math, chinese, english;
                do
                {
                    cout << "请输入姓名" << endl;
                    cin >> name;
                    cout << "请输入数学成绩：" << endl;
                    cin >> math;
                    cout << "请输入语文成绩：" << endl;
                    cin >> chinese;
                    cout << "请输入外语成绩：" << endl;
                    cin >> english;
                    cout << "姓名" << name << "数学成绩" << math << "语文成绩" << chinese << "外语成绩" << english << endl;
                    j++;
                    s[i] = new stu(name, math, chinese, english);
                    i++;
                    cout << "数据录入成功，想继续录入吗(y/n)" << endl;
                    cin >> c;
                    flag2 = 0;
                    do
                    {
                        if (c != 'y' && c != 'n')
                        {
                            cout << "指令错误！请重新输入！" << endl;
                            cin >> c;
                        }
                        else flag2 = 1;
                    }
                    while (flag2 == 0);
                }
                while (c == 'y');
                break;
            }

        case '1':
            {
                char name[20];
                double math, chinese, english;
                char c;
                do
                {
                    cout << "请输入您要增加的学生的姓名：" << endl;
                    cin >> name;
                    cout << "请输入数学成绩：" << endl;
                    cin >> math;
                    cout << "请输入语文成绩：" << endl;
                    cin >> chinese;
                    cout << "请输入外语成绩：" << endl;
                    cin >> english;
                    cout << "姓名" << name << "数学成绩" << math << "语文成绩" << chinese << "外语成绩" << english << endl;
                    j++;
                    s[i] = new stu(name, math, chinese, english);
                    i++;
                    cout << "数据录入成功，想继续录入吗(y/n)" << endl;
                    cin >> c;
                    if (c != 'y' && c != 'n')
                    {
                        cout << "指令错误！请重新输入！" << endl;
                        cin >> c;
                    }
                }
                while (c == 'y');
                break;
            }
        case '2':
            {
                char name[20];
                int flag3 = 0;
                char c;
                do
                {
                    cout << "请输入您要删除的学生姓名：" << endl;
                    cin >> name;
                    for (int h = 0; h < i; h++)
                    {
                        if (strcmp(name, s[h]->name) == 0)
                        {
                            flag3 = 1;
                            i--;
                            do
                            {
                                s[h] = s[h + 1];
                                h++;
                            }
                            while (h <= i);
                        }
                    }
                    if (flag3 == 0) cout << "您要求删除的对象本来就不存在！请检查输入的正确性！";
                    cout << "要继续删除吗？(y/n)" << endl;
                    cin >> c;
                    if (c != 'y' && c != 'n')
                    {
                        cout << "指令错误！请重新输入！" << endl;
                        cin >> c;
                    }
                }
                while (c == 'y');
                break;
            }
        case '3':
            {
                char name[20];
                double mat, chin, eng;
                flag2 = 0;
                char c;
                do
                {
                    cout << "请输入您要修改的学生的姓名：" << endl;
                    cin >> name;
                    for (int h = 0; h < i; h++)
                    {
                        if (strcmp(name, s[h]->name) == 0)
                        {
                            flag2 = 1;
                            cout << "请输入新的数学成绩：" << endl;
                            cin >> mat;
                            cout << "请输入新的语文成绩：" << endl;
                            cin >> chin;
                            cout << "请输入新的外语成绩：" << endl;
                            cin >> eng;
                            s[h]->chinese = chin;
                            s[h]->math = mat;
                            s[h]->english = eng;
                            cout << "数据修改成功！";
                        }
                    }
                    if (flag2 == 0)
                    {
                        cout << "您要修改的学生本来就不存在！请检查重新输入！" << endl;
                    }
                    cout << "想继续修改吗(y/n)" << endl;
                    cin >> c;
                    if (c != 'y' && c != 'n')
                    {
                        cout << "指令错误！请重新输入！" << endl;
                        cin >> c;
                    }
                }
                while (c == 'y');
                break;
            }
        case '4':
            {
                double t;
                char c;
                do
                {
                    int flag1 = 0;
                    cout << "请输入你要查询学生的总成绩" << endl;
                    cin >> t;
                    for (int q = 0; q < i; q++)
                    {
                        if (s[q]->getsum() == t)
                        {
                            flag1 = 1;
                            cout << "您要查询的学生是：" << (*s[q]).name << endl;
                        }
                    }
                    if (flag1 == 0) cout << "对不起！您要查询的学生不存在！" << endl;
                    cout << "您想继续查询吗?(y/n)" << endl;
                    cin >> c;
                    if (c != 'y' && c != 'n')
                    {
                        cout << "指令错误！请重新输入！" << endl;
                        cin >> c;
                    }
                }
                while (c == 'y');
                break;
            }

        case '5':
            {
                char n[20];
                int j = 0;
                char c;
                do
                {
                    int flag = 0;
                    cout << "请输入你要查询的学生姓名" << endl;
                    cin >> n;
                    for (int j = 0; j < i; j++)
                    {
                        if (strcmp(n, (*s[j]).name) == 0)
                        {
                            flag = 1;
                            cout << "您要查询的学生是：" << (*s[j]).name << endl;
                            cout << (*s[j]).name << "的总成绩成绩是" << (*s[j]).getsum() << endl << "平均成绩是："
                                << (*s[j]).getaver() << endl;
                        }
                    }
                    if (flag == 0) cout << "对不起!您要查询的学生不存在!" << endl;
                    cout << "您想继续查询吗?(y/n)" << endl;
                    cin >> c;
                    if (c != 'y' && c != 'n')
                    {
                        cout << "指令错误！请重新输入！" << endl;
                        cin >> c;
                    }
                }
                while (c == 'y');
                break;
            }
        case '6':
            {
                cout << "本系统所有学生数据如下：" << endl;
                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！" << endl;
                for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << (*s[k]).getsum() << "平均分：" << " " << (*s[k]).getaver() << endl;
                }
                break;
            }

[「已注销」]

        case '7':
            {
                int t;
                stu b;

                cout << "本系统所以学生排名如下：" << endl;
                for (int x = 0; x < i - 1; x++)
                {
                    t = x;
                    for (int y = x + 1; y < i; y++)
                    {
                        if ((s[t]->getsum()) < (s[y]->getsum())) t = y;
                        if (t != x)
                        {
                            b = *s[x];
                            *s[x] = *s[t];
                            *s[t] = b;
                        }
                    }
                }
                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！";
                for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << s[k]->getsum() << "平均分：" << " " << s[k]->getaver() << endl;
                }
                break;
            }
        case '8':
            {
                int t;
                stu b;

                cout << "本系统所以学生语文排名如下：" << endl;
                for (int x = 0; x < i - 1; x++)
                {
                    t = x;
                    for (int y = x + 1; y < i; y++)
                    {
                        if ((s[t]->chinese) < (s[y]->chinese)) t = y;
                        if (t != x)
                        {
                            b = *s[t];
                            *s[t] = *s[x];
                            *s[x] = b;
                        }
                    }
                }

                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！";
                for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << s[k]->getsum() << "平均分：" << " " << s[k]->getaver() << endl;
                }
                break;
            }
        case '9':
            {
                int t;
                stu b;

                cout << "本系统所以学生数学排名如下：" << endl;
                for (int x = 0; x < i - 1; x++)
                {
                    t = x;
                    for (int y = x + 1; y < i; y++)
                    {
                        if ((s[t]->math) < (s[y]->math)) t = y;
                        if (t != x)
                        {
                            b = *s[t];
                            *s[t] = *s[x];
                            *s[x] = b;
                        }
                    }
                }

                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！";
                for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << s[k]->getsum() << "平均分：" << " " << s[k]->getaver() << endl;
                }
                break;
            }
        case 'a':
            {
                int t;
                stu b;

                cout << "本系统所有学生英语排名如下：" << endl;
                for (int x = 0; x < i - 1; x++)
                {
                    t = x;
                    for (int y = x + 1; y < i; y++)
                    {
                        if ((s[t]->english) < (s[y]->english)) t = y;
                        if (t != x)
                        {
                            b = *s[t];
                            *s[t] = *s[x];
                            *s[x] = b;
                        }
                    }
                }

                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！";
                for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << s[k]->getsum() << "平均分：" << " " << s[k]->getaver() << endl;
                }
            }
            break;
        case 'b':

            {
                int t;
                cout << "语文不及格的学生数据如下：" << endl;
                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！" << endl;
                if ((s[t]->chinese < 60)) for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << (*s[k]).getsum() << "平均分：" << " " << (*s[k]).getaver() << endl;
                }
                break;
            }
        case 'c':

            {
                int f;
                cout << "数学不及格的学生数据如下：" << endl;
                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！" << endl;
                if ((s[f]->math < 60)) for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << (*s[k]).getsum() << "平均分：" << " " << (*s[k]).getaver() << endl;
                }
                break;
            }
        case 'd':

            {
                int g;
                cout << "外语不及格的学生数据如下：" << endl;
                if (i == 0) cout << "管理系统中没有录入数据或者数据已经被删除！" << endl;
                if ((s[g]->english < 60)) for (int k = 0; k < i; k++)
                {
                    cout << k + 1 << " " << "姓名:" << " " << s[k]->name << "语文：" << " " << s[k]->chinese
                        << "数学：" << " " << s[k]->math << "外语：" << " " << s[k]->english << "总分：" << " "
                        << (*s[k]).getsum() << "平均分：" << " " << (*s[k]).getaver() << endl;
                }
                break;
            }
        }
        cout << "您想继续进行其他操作吗?(y/n)" << endl;
        int flag4 = 0;
        do
        {
            cin >> w;
            if (w != 'y' && w != 'n') cout << "指令错误！请重新输入！" << endl;
            else flag4 = 1;
        }
        while (flag4 == 0);
        if (w == 'y') cout
            << "请输入操作代码(0 录入/1 增加人员/2 删除人员/3 修改数据/4 按总分查询/5 按姓名查询/6 显示所有成员数据/7 按总分排名/8 按语文排名/9 按数学排名/a 按英语排名/b 显示语文不及格的成员数据/c 显示数学不及格的成员数据/d 显示英语不及格的成员数据)"
            << endl;
        cin >> p;
    }
    while (w == 'y');
    for (int x = 0; x < i; x++)
    {
        delete s[x];
        cout << "delete all members!" << endl;
    }
}

[赵4老师]

出现这种错误我一般是通过
1.加/*...*/
2.重新编译
3.重复1、2直到发现问题
的方法解决的。

[tanleihexinxin]

大括号不匹配
do{
switch(p)
{
case '0':
{
char c;
char name[20];double math,chinese,english;
do{
cout <<"请输入姓名" <<endl;
cin>>name;
cout <<"请输入数学成绩：" <<endl;
cin>>math;
cout <<"请输入语文成绩：" <<endl;
cin>>chinese;
cout <<"请输入外语成绩：" <<endl;
cin>>english;
cout <<"姓名" <<name <<"数学成绩" <<math <<"语文成绩" <<chinese <<"外语成绩" <<english <<endl;
j++;
s[i]=new stu(name, math, chinese, english);
i++;
cout <<"数据录入成功，想继续录入吗(y/n)" <<endl;
cin>>c;
flag2=0;
do
{
if(c!='y'&&c!='n')
{
cout <<"指令错误！请重新输入！" <<endl;
cin>>c;
}
else
flag2=1;
}while(flag2==0);
}while(c=='y');
break;
}

case '1':
{
char name[20];double math,chinese,english;
char c;
do
{
cout <<"请输入您要增加的学生的姓名：" <<endl;
cin>>name;
cout <<"请输入数学成绩：" <<endl;
cin>>math;
cout <<"请输入语文成绩：" <<endl;
cin>>chinese;
cout <<"请输入外语成绩：" <<endl;
cin>>english;
cout <<"姓名" <<name <<"数学成绩" <<math <<"语文成绩" <<chinese <<"外语成绩" <<english <<endl;
j++;
s[i]=new stu(name, math, chinese, english);
i++;
cout <<"数据录入成功，想继续录入吗(y/n)" <<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout <<"指令错误！请重新输入！" <<endl;
cin>>c;
}
}while(c=='y');
break;
}
case '2':
{
char name[20];int flag3=0;char c;
do{
cout <<"请输入您要删除的学生姓名：" <<endl;
cin>>name;
for(int h=0;h <i;h++)
{
if(strcmp(name,s[h]->name)==0)
{
flag3=1;
i--;
do{
s[h]=s[h+1];
h++;
}while(h <=i);
}
}
if(flag3==0)
cout <<"您要求删除的对象本来就不存在！请检查输入的正确性！";
cout <<"要继续删除吗？(y/n)" <<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout <<"指令错误！请重新输入！" <<endl;
cin>>c;
}
}while(c=='y');
break;
}
case '3':
{
char name[20];double mat,chin,eng;flag2=0;
char c;
do
{
cout <<"请输入您要修改的学生的姓名：" <<endl;
cin>>name;
for(int h=0;h <i;h++)
{
if(strcmp(name,s[h]->name)==0)
{
flag2=1;
cout <<"请输入新的数学成绩：" <<endl;
cin>>mat;
cout <<"请输入新的语文成绩：" <<endl;
cin>>chin;
cout <<"请输入新的外语成绩：" <<endl;
cin>>eng;
s[h]->chinese=chin;
s[h]->math=mat;
s[h]->english=eng;
cout <<"数据修改成功！";
}
}
if(flag2==0)
{
cout <<"您要修改的学生本来就不存在！请检查重新输入！" <<endl;
}
cout <<"想继续修改吗(y/n)" <<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout <<"指令错误！请重新输入！" <<endl;
cin>>c;
}
}while(c=='y');
break;
}
case '4':
{
double t;char c;
do
{
int flag1=0;
cout <<"请输入你要查询学生的总成绩" <<endl;
cin>>t;
for(int q=0;q <i;q++)
{
if(s[q]->getsum()==t)
{
flag1=1;
cout <<"您要查询的学生是：" <<(*s[q]).name <<endl;
}
}
if(flag1==0)
cout <<"对不起！您要查询的学生不存在！" <<endl;
cout <<"您想继续查询吗?(y/n)" <<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout <<"指令错误！请重新输入！" <<endl;
cin>>c;
}
}
while(c=='y');
break;
}

case '5':
{
char n[20];int j=0;char c;
do{
int flag=0;
cout <<"请输入你要查询的学生姓名" <<endl;
cin>>n;
for(int j=0;j <i;j++)
{
if(strcmp(n,(*s[j]).name)==0)
{
flag=1;
cout <<"您要查询的学生是：" <<(*s[j]).name <<endl;
cout <<(*s[j]).name <<"的总成绩成绩是" <<(*s[j]).getsum() <<endl <<"平均成绩是：" <<(*s[j]).getaver() <<endl;
}
}
if(flag==0)
cout <<"对不起!您要查询的学生不存在!" <<endl;
cout <<"您想继续查询吗?(y/n)" <<endl;
cin>>c;
if(c!='y'&&c!='n')
{
cout <<"指令错误！请重新输入！" <<endl;
cin>>c;
}
}
while(c=='y');
break;
}
case '6':
{
cout <<"本系统所有学生数据如下：" <<endl;
if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！" <<endl;
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<(*s[k]).getsum()
<<"平均分：" <<" " <<(*s[k]).getaver() <<endl;
}
break;
}
case '7':
{
int t;stu b;

cout <<"本系统所以学生排名如下：" <<endl;
for(int x=0;x <i-1;x++)
{
t=x;
for(int y=x+1;y <i;y++)
{
if((s[t]->getsum()) <(s[y]->getsum()))
t=y;
if(t!=x)
{
b=*s[x];
*s[x]=*s[t];
*s[t]=b;
}
}
}
if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<s[k]->getsum()
<<"平均分：" <<" " <<s[k]->getaver() <<endl;
}
break;
}
case '8':
{
int t;stu b;

cout <<"本系统所以学生语文排名如下：" <<endl;
for(int x=0;x <i-1;x++)
{
t=x;
for(int y=x+1;y <i;y++)
{
if((s[t]->chinese) <(s[y]->chinese))
t=y;
if(t!=x)
{
b=*s[t];
*s[t]=*s[x];
*s[x]=b;
}
}
}

if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<s[k]->getsum()
<<"平均分：" <<" " <<s[k]->getaver() <<endl;
}
break;
}
case '9':
{
int t;stu b;

cout <<"本系统所以学生数学排名如下：" <<endl;
for(int x=0;x <i-1;x++)
{
t=x;
for(int y=x+1;y <i;y++)
{
if((s[t]->math) <(s[y]->math))
t=y;
if(t!=x)
{
b=*s[t];
*s[t]=*s[x];
*s[x]=b;
}
}
}

if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<s[k]->getsum()
<<"平均分：" <<" " <<s[k]->getaver() <<endl;
}
break;
}
case 'a':
{
int t;stu b;

cout <<"本系统所有学生英语排名如下：" <<endl;
for(int x=0;x <i-1;x++)
{
t=x;
for(int y=x+1;y <i;y++)
{
if((s[t]->english) <(s[y]->english))
t=y;
if(t!=x)
{
b=*s[t];
*s[t]=*s[x];
*s[x]=b;
}
}
}

if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！";
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<s[k]->getsum()
<<"平均分：" <<" " <<s[k]->getaver() <<endl;
}

break;
}
case 'b':

{
int t;
cout <<"语文不及格的学生数据如下：" <<endl;
if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！" <<endl;
if((s[t]->chinese <60))
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<(*s[k]).getsum()
<<"平均分：" <<" " <<(*s[k]).getaver() <<endl;
}
break;
}
case 'c':

{
int f;
cout <<"数学不及格的学生数据如下：" <<endl;
if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！" <<endl;
if((s[f]->math <60))
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<(*s[k]).getsum()
<<"平均分：" <<" " <<(*s[k]).getaver() <<endl;
}
break;
}
case 'd':

{
int g;
cout <<"外语不及格的学生数据如下：" <<endl;
if(i==0)
cout <<"管理系统中没有录入数据或者数据已经被删除！" <<endl;
if((s[g]->english <60))
for(int k=0;k <i;k++)
{
cout <<k+1 <<" " <<"姓名:" <<" " <<s[k]->name <<
"语文：" <<" " <<s[k]->chinese <<"数学：" <<" " <<s[k]->math
<<"外语：" <<" " <<s[k]->english <<"总分：" <<" " <<(*s[k]).getsum()
<<"平均分：" <<" " <<(*s[k]).getaver() <<endl;
}
break;
}
cout <<"您想继续进行其他操作吗?(y/n)" <<endl;
int flag4=0;
do
{
cin>>w;
if(w!='y'&&w!='n')
cout <<"指令错误！请重新输入！" <<endl;
else
flag4=1;
}while(flag4==0);
if(w=='y')
cout <<"请输入操作代码(0 录入/1 增加人员/2 删除人员/3 修改数据/4 按总分查询/5 按姓名查询/6 显示所有成员数据/7 按总分排名/8 按语文排名/9 按数学排名/a 按英语排名/b 显示语文不及格的成员数据/c 显示数学不及格的成员数据/d 显示英语不及格的成员数据)" <<endl;
cin>>p;
}
}while(w=='y');
for(int x=0;x <i;x++)
{
delete s[x];
cout <<"delete all members!" <<endl;
}

}

[cattycat]

一般这个都是看括号是否匹配，因为你的代码一个case块太长，所以比较难找，如果你用vc assist的话，可以看到不匹配的括号红色显示。把代码foramt一下吧。

[skolf]

多谢指教啊

[skolf]

我想再问一下 ，为什么我执行cose 'b','c','d'时会出错呢？

[xianyuxiaoqiang]

汗……先自己调试看看

[iverzhang]

楼主的代码搞的太冗余了，差错都不易，建议更能类似的函数，还是写到一个函数中，也方便找错

[niejimaoo]

晕了先

[grpubr]

我放弃了。太恐怖了

[yuzhiyi926]

简简单单的飘过。。。。。。。。。