1. 程式人生 > >C++實現分類統計字串中字元個數

C++實現分類統計字串中字元個數

#include <iostream>
using namespace std;
int main(int argc, char **argv) {
	int a,b,c,d,e,len;
	string str;
	cout<<"請輸入一個字串:";
	getline(cin,str);
	len=str.length();
	a=b=c=d=e=0;
	for (int i = 0; i < len; i++) {
		char ch=str[i];
		cout<<ch<<endl;
		if(str[i]>='A' && str[i]<='Z'){
			a++;
		}else if(ch>='a' && ch<='z'){
			b++;
		}else if(ch == ' '){
			c++;
		}else if(ch>='0' && ch<='9'){
			d++;
		}else{
			e++;
		}
	}
	cout<<"字串中大寫字元共有:"<<a<<endl
	<<"字串中小寫字元共有:"<<b<<endl
	<<"字串中空格字元共有:"<<c<<endl
	<<"字串中數字字元共有:"<<d<<endl
	<<"字串中其它字元共有:"<<e<<endl;
}