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  1. #include <stdio.h>
  2. int main(void) {
  3.     char ch;
  4.     scanf("%c",&ch);
  5.     if((ch>='0')&&(ch<='9'))
  6.         printf("这是一个数字字符");
  7.     else if((ch>='a')&&(ch<='z'))
  8.         printf("这是一个小写字母");
  9.     else if((ch>='A')&&(ch<='Z'))
  10.         printf("这是一个大写字母");
  11.     else if(ch == ' ')
  12.         printf("这是一个空格");
  13.     else 
  14.         printf("这是其它字符");
  15.     return 0;
  16. }
Success #stdin #stdout 0s 5320KB
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stdout
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这是一个数字字符
https://ideone.com/EYf0jN
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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