C++：統計字元串内大小寫字母，數字空格，逗号等

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原題：

用賦初值的方法把字元串 “ C is a general purpose, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.” 存放到字元數組s中，程式設計統計其中的大寫字母、小寫字母、數字、空格、逗号的個數。

代碼：

#include<iostream>
using namespace std;

int main()

{
    char c;
    int smallletters = 0, largeletters=0,space = 0, digit = 0,douhao=0, other = 0;
    cout << "請輸入字元串：";
    while ((c = getchar()) != '\n')
    {
        if (c >= 'a' && c <= 'z')
        {
            smallletters++;
        }
        else if (c >= 'A' && c <= 'Z')
        {
            largeletters++;
        }
        else if (c == ' ')
        {
            space++;
        }
        else if (c >= '0' && c <= '9')
        {
            digit++;
        }
        else if (c == ',')
        {
            douhao++;
        }
        else
        {
            other++;
        }
    }
    cout <<"小寫字母："<< smallletters <<"\t"<<"大寫字母："<<largeletters<<"\t"<<"空格："<< space <<"\t"<<"數字："<< digit <<"\t"<<"逗号："<<douhao<<"\t"<<"其它："<< other <<"\t"<< endl;

    return 0;

}      

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