C语言统计字符数算法

#include<stdio.h>#define MAX 100void cal_num(char *str,int count[]){ char *pstr=str; while(*pstr!=0) { if(*pstr>='0'&&*pstr<='9') count[0]++; else if((*pstr>='a'&&*pstr<='z')||(*pstr>='A'&&*pstr<='Z')) count[1]++; else count[2]++; pstr++; }}

int main(){ char str[MAX]; int count[3]={0}; printf("请输入字符串：\n"); scanf("%s",str); cal_num(str,count); printf("数字个数：%d\n",count[0]); printf("字母个数：%d\n",count[1]); printf("特殊字符：%d\n",count[2]); return 0; }

转载于:https://www.cnblogs.com/yangxuechen/p/7218612.html

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