1.判断输入框的内容是否是数字
-(BOOL)isNumText:(NSString *)str{
NSString * regex = @"^[0-9]*$";
NSPredicate * pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
BOOL isMatch = [pred evaluateWithObject:str];
if (isMatch) {
return YES;
}else{
return NO;
}
}
原文链接：https://www.f2er.com/regex/362288.html
