自用部分正则表达式

是否为中文

-(BOOL)isChinese{

NSString *match=@"(^[u4e00-u9fa5]+$)";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF matches %@",match];

return [predicate evaluateWithObject:self];

}

- (BOOL)isValidateEmail:(NSString *)Email

{

NSString *emailCheck = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+.[A-Za-z]{2,4}";

NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",emailCheck];

return [emailTest evaluateWithObject:Email];

}

- (BOOL) isEmail{

NSString *emailRegEx =

@"(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:.[a-z0-9!#$%&'*+/=?^_`{|}"

@"~-]+)*|"(?:[x01-x08x0bx0cx0e-x1fx21x23-x5bx5d-"

@"x7f]|\[x01-x09x0bx0cx0e-x7f])*")@(?:(?:[a-z0-9](?:[a-"

@"z0-9-]*[a-z0-9])?.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|[(?:(?:25[0-5"

@"]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-"

@"9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[x01-x08x0bx0cx0e-x1fx21"

@"-x5ax53-x7f]|\[x01-x09x0bx0cx0e-x7f])+)])";

NSPredicate *regExPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",emailRegEx];

return [regExPredicate evaluateWithObject:[self lowercaseString]];

}

（编辑：李大同）

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