#include <stdio.h>
#include <ctype.h>
int main () {
int var1 = 'Q';
int var2 = 'q';
int var3 = '3';
if( islower(var1) ) {
printf("var1 = |%c| is lowercase character/n", var1 );
} else {
printf("var1 = |%c| is not lowercase character/n", var1 );
}
if( islower(var2) ) {
printf("var2 = |%c| is lowercase character/n", var2 );
} else {
printf("var2 = |%c| is not lowercase character/n", var2 );
}
if( islower(var3) ) {
printf("var3 = |%c| is lowercase character/n", var3 );
} else {
printf("var3 = |%c| is not lowercase character/n", var3 );
}
return(0);
}
原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/tech/pnotes/265177.html