17.cpp

经典C语言程序设计100例1-10 如【程序1】 题目：有1、2、3、4个数字

/*---------------------------------------例题17-------------------------------------------------------------------*/

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
	int nchar = 0, none = 0, num = 0, nelse = 0 ;
	char a;
	cout<<"input some characters:"<<endl;
	while( !cin.eof())
	{
		cin.get(a);
		if((a<='z' && a>='a')||(a<='Z' && a>='A'))
			nchar++;
		else if(a==' ')
			none++;
		else if(a<='9' && a>='0')
			num++;
		else
			nelse ++;
	}
	cout<<"The number of char is "<<nchar<<'.'<<endl;
	cout<<"The number of number is "<<num<<'.'<<endl;
	cout<<"The number of space is "<<none<<'.'<<endl;
	cout<<"The number of other characters is "<<(nelse-1)<<'.'<<endl;

	return 0;
}