摘要：
NSString *password = @"12 34";[password stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; 阅读全文
摘要：
//利用正则表达式验证邮箱的合法性-(BOOL)isValidateEmail:(NSString *)email { NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; NSPredicate... 阅读全文