int ch ; S_(&UeTC
ch=getche() ; x\Nhix}1D
if((ch>='a') && (ch<='z')) XsAY4WTS
printf("%c is a lowercase letter\n" ,ch); t Y:G54d=_
else if ((ch>='A') && (ch<='Z')) /p"U
print(" %c is a uppercase letter\n" ,ch); gZw\*9Q9
else if((ch>'0')&&(ch<'9') SjZd0H0
printf(" %c is a number character between 0 and 9\n" ,ch) ; 3gxf~$)?
else ucQezmie
printf("%c is...") G*)s%2c>h
W9
n^T+2
外面再加个循环就行了