结构体变量问题

[LLIZH061]

#include "stdafx.h"
#include <iostream>

using namespace std;

typedef struct
{
short year;
short month;
short day;
short hour;
short min;
short sec;
short m;
} time ;
int main(void)
{
time t;
cout<<"Year:"<<endl;
cin>>t.year;
cout<<"Month:"<<endl;
cin>>t.month ;
cout<<"Day:"<<endl;
cin>>t.day;
cout<<"Hour:"<<endl;
cin>>t.hour ;
cout<<"Min:"<<endl;
cin>>t.min;
cout<<"Sec:"<<endl;
cin>>t.sec;
cout<<t.year<<'-'<<t.month<<'-'<<t.day<<' '
<<t.hour<<':'<<t.min<<':'<<t.sec<<endl;
time m;
cin>>t.m;
return 0;
}
怎样禁止运行时输入不合理的数据，例如month的值大于12？

[fox000002]

读取后判断一下，如果不符合就重新输入

[wuyu637]

int main(void) 
{ 
	int months = 0;

	int temp=0;
	cout << "input month :" << endl;
	cin >> temp;
	while(temp > 12 || temp < 0)
	{
		cout << "input data error : month should between 1-12." << endl;
		cout << "input month: " <<endl;
		cin >> temp;
	}
	months = temp;

	cout << " the months is :" << months << endl;
}

[chlaws]

加个断言 assert(month>=0 && month<12); 注意别忘了头文件#include <assert.h>

[zgjxwl]

#include <iostream> 
using namespace std; 

typedef struct 
{ 
  short month; 
 
} time ; 
int main(void) 
{ 
  time t; 
  cout <<"Month:" <<endl; 
  cin>>t.month ; 
  if(t.month==1||t.month==2||t.month==3||t.month==4||t.month==5||t.month==6||t.month==7||t.month==8||t.month==9||t.month==10||t.month==11||t.month==12)
  cout<<"The data you just input is right!"<<endl;
  else
	  cout<<"The data you just input is wrong!";
  return 0; 
} 

[chlaws]

小雨 你属小强？

[zgjxwl]

[Quote=引用 5 楼 chlaws 的回复:]
小雨 你属小强？
[/Quote]
石家说啥哈?

[lunarfan]

输出之前先判断

[chlaws]

呵呵 没看明白就算了

[zgjxwl]

[Quote=引用 8 楼 chlaws 的回复:]
呵呵 没看明白就算了
[/Quote]
你和小崔一样,叫偶小雨,哈哈,第一次是晨星这么叫的

[chlaws]

看到过那帖子

[zgjxwl]

偶改名的时候...

[jia_xiaoxin]

#include "stdafx.h"
#include <iostream>

using namespace std;

typedef struct
{
short year;
short month;
short day;
short hour;
short min;
short sec;
short m;
} time ;
int main(void)
{
time t;
cout < <"Year:" < <endl;
cin>>t.year;
cout < <"Month:" < <endl;
cin>>t.month ;
while(true)
{
cin >> t.month;
if(t.month <= 12 && t.month >= 1)
break;
else
{
cout << "Please input num between 1..12" << endl;
cin.clear();
cin.get();
}
}
cout < <"Day:" < <endl;
cin>>t.day;
cout < <"Hour:" < <endl;
cin>>t.hour ;
cout < <"Min:" < <endl;
cin>>t.min;
cout < <"Sec:" < <endl;
cin>>t.sec;
cout < <t.year < <'-' < <t.month < <'-' < <t.day < <' '
< <t.hour < <':' < <t.min < <':' < <t.sec < <endl;
time m;
cin>>t.m;
return 0;
}