c语言程序题。用循环控制语句

Question

编写程序，从键盘上输入一串字符，以回车结束，输出其中大写字母，小写字母，数字字符和其他字符的个数。

Answer 1

#include<stdio.h> void main() { char str[100]; int i,number=0,A=0,a=0,other=0; printf("请输入一行字符串:"); gets(str); for(i=0;str[i]!='\0';i++) { if(str[i]>='0'&&str[i]<='9') number++; else if(str[i]>='a'&&str[i]<='z') a++; else if(str[i]>='A'&&str[i]<='Z') A++; else other++; } printf("大写字母:%d个，小写字母：%d个,数字:%d个，其他%d个\n", A,a,number,other); }

Answer 2

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