一个关于二维数组的问题，编译的时候没有出错，但是在运行的时候输入第三组数值时VC报错。

[christianozhao]

下面是我的程序，统计3年中一本书每年的总销量（每个月的销量由人工输入），每一年的销量统计完成后打印出结果，最后显示三年的总销量，在我输入第三年五月份的销量的时候VC报错，程序崩溃了，我也不知道程序出了什么问题，谢谢大家帮助啦！

# include <iostream>

const int MONTHS=12;
const char *months[MONTHS]={"January","Febuary","March","April","May",
"June","July","August","September","October","November","December"};

int main()
{
using namespace std;
int i=1;
int j=1;
double sum=0.0;
int sales[3][MONTHS];
int month;
while(j<=3)
{
cout<<"Enter the "<<j<<" year monthly sales for\"C++ for Fools\":\n";
for(month=0;month<MONTHS;month++)
{
cout<<"Sales for "<<months[month]<<":";
cin>>sales[i][month];
}
double total=0.0;
for(month=0;month<MONTHS;month++)
total+=sales[i][month];
cout<<"Total sales:"<<total<<endl;
i++;
j++;
sum+=total;
}
cout<<"The 3 year's totol sales is:"<<sum<<endl;
return 0;
}

[ouyh12345]

跟踪一下，看在哪崩的，然后看看变量是什么值

[ouyh12345]

total+=sales[i][month];
这里数组的下标应该是从0开始的

[christianozhao]

谢谢！我试一下！

[xax100000]

数组下标。
以后碰到这种问题，自己检查检查。

[christianozhao]

谢谢楼上的各位。。
没想到犯这么低级的错误。。
基础不够牢固啊！谢谢！

[hjessica]

# include  <iostream> 

const int MONTHS=12; 
const char *months[MONTHS]={"January","Febuary","March","April","May", 
"June","July","August","September","October","November","December"}; 

int main() 
{ 
	using namespace std; 
    int j=0; 
	double sum=0.0; 
	int sales[3][MONTHS]; 
	int month; 
	while(j <3) 
	{ 
		
		cout <<"Enter the " <<j <<" year monthly sales for\"C++ for Fools\":\n"; 
		for(month=0;month <MONTHS;month++) { 
			cout <<"Sales for " <<months[month] <<":"; 
			cin>>sales[j][month]; 		
		} 
		double total=0.0; 
		for(month=0;month <MONTHS;month++) 
		total+=sales[j][month]; 
		cout <<"Total sales:" <<total <<endl; 
		j++; 
		sum+=total; 
	} 
	cout <<"The 3 year's totol sales is:" <<sum <<endl; 
	return 0; 
} 

[Mnky]

你i和j如果要从1变到3，那么sales生命的时候应该变成 int sales[4][MONTHS];
否则，就把 i,j 初始化为0，循环时用 while(j<3)