题目: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 <string>
using namespace std;

int main()
{
  const int size = 100;
  char ch[size];
  int CharNum = 0, DigNum = 0, NullNum = 0, OtherNum = 0; 
  for(int i = 0; i < size; i++)
  {
    ch[i] = getchar();
    if(ch[i] == '\n')   //终止输入
    {
      break;
    }
  }

  for(int i = 0; i < size && ch[i] != '\n'; i++)
  {
    if( ch[i] >= 'a' && ch[i] <= 'z' || ch[i] >= 'A' && ch[i] <= 'Z')
    {
      CharNum++;
    }
    else if(ch[i] >= '0' && ch[i] <= '9')
    {
      DigNum++;
    }
    else if(ch[i] == ' ')
    {
      NullNum++;
    }
    else
    {
      OtherNum++;
    }
  }
  cout << "字母个数: " << CharNum << endl << "数字个数:" << DigNum << endl 
      << "空格个数: " << NullNum << endl << "其他字符: " << OtherNum << endl;

  return 0;
}

posted on 2015-04-20 10:59  凡尘微末  阅读(319)  评论(0编辑  收藏  举报