NSString *laxString = @"[1-9]\d*|0";//正则表达式 数字
NSPredicate *numberPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",laxString];
NSString *laxString = @"[1-9]\d*|0";//正则表达式 数字
NSPredicate *numberPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",laxString];