(c language) Determine whether an input character is an English lowercase letter.

(c language) Determine whether an input character is an English lowercase letter.

#include<stdio.h>
#include<stdlib.h>
int main()
{
    
    
	char ch;
	printf("请输入您所要判断的字符："); 
	scanf("%c",&ch);
	if(ch>='a'&&ch<='z'){
    
    
		printf("是英文字母小写");
	} 
	else{
    
    
		printf("%c不是英文字母小写",ch); 
	} 
}