常用正则表达式

最新推荐文章于 2024-10-25 09:10:58 发布

Gz_Jason_chen

最新推荐文章于 2024-10-25 09:10:58 发布

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分类专栏：算法

本文链接：https://blog.youkuaiyun.com/Jason_chen13/article/details/72866056

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本文介绍了一种使用Objective-C进行电子邮件地址、手机号码及全中文字符串的有效性验证方法。通过正则表达式与NSPredicate结合的方式，确保了输入数据的正确性。文章提供了具体的实现代码，并解释了如何针对不同类型的输入进行验证。

- (void)viewDidLoad {
    [super viewDidLoad];

    BOOL b = [ViewController validateEmail:@"好一个b"];
    BOOL b2 = [ViewController validatePhone:@"13A24343311"];

}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

//邮箱
+ (BOOL)validateEmail:(NSString *)email
{
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    return [emailTest evaluateWithObject:email];
}



//是否全中文
+ (BOOL)validateChinese:(NSString *)chinese
{
    NSString *emailRegex = @"^[\u4E00-\u9FA5]*$";//@"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    return [emailTest evaluateWithObject:chinese];
}


//手机号
+ (BOOL)validatePhone:(NSString *)phone
{
    NSString *phoneRegex = @"1[3|5|7|8|][0-9]{9}";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];
    return [phoneTest evaluateWithObject:phone];
}