//输入一行字符,分别统计出其中英文字母、空格、数字和其它字符的个数。
#include <iostream>
#include "stdio.h"
using namespace std;
int main()
{
    int engNum=0,spacNum=0,digitNum=0,others=0;
    char c;
    cout<<"Please input some characters : ";
    while((c=
getchar())!='\n'){
        if((c>='a'&&c<='z')||(c>='A'&&c<='Z')){
            engNum++;
        }else if(c>='0'&&c<='9'){
            digitNum++;
        }else if(c==' '){
            spacNum++;
        }else{
            others++;
        }
    }
    cout<<"The number of elphabet      is "<<engNum<<endl;
    cout<<"The number of digit         is "<<digitNum<<endl;
    cout<<"The number of space         is "<<spacNum<<endl;
    cout<<"The number of others figure is "<<others<<endl;
    return 0;
}
//主要学习的是getchar()使用,
一定要有#include "stdio.h"
运行结果为:
  
  
  
    
      
        
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- 大小: 31.1 KB