C# uses regular expressions to verify phone numbers, mobile phone numbers, ID numbers

Little scum · Posted on 12/23/2015 6:12:47 PM

验证电话号码的主要代码如下：
public bool IsTelephone(stringstr_telephone)
{
returnSystem.Text.RegularExpressions.Regex.IsMatch(str_telephone,@"^(\d{3,4}-)?\d{6,8}$");
}
验证手机号码的主要代码如下：
public bool IsHandset(string str_handset)
{
returnSystem.Text.RegularExpressions.Regex.IsMatch(str_handset,@"^[1]+[3,5]+\d{9}");
}
验证身份证号的主要代码如下：
public bool IsIDcard(stringstr_idcard)
{
returnSystem.Text.RegularExpressions.Regex.IsMatch(str_idcard,@"(^\d{18}$)|(^\d{15}$)");
}
验证输入为数字的主要代码如下：
public bool IsNumber(stringstr_number)
{
returnSystem.Text.RegularExpressions.Regex.IsMatch(str_number,@"^[0-9]*$");
}
验证邮编的主要代码如下：
public boolIsPostalcode(string str_postalcode)
{
returnSystem.Text.RegularExpressions.Regex.IsMatch(str_postalcode,@"^\d{6}$");
}

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Little scum · Posted on 12/24/2015 6:15:37 PM

Some of the above are wrong, and the lower I verified that it is correct!

/// <summary>
/// 判断登录名是否是邮箱
/// </summary>
/// <param name="emailStr"></param>
/// <returns></returns>
public static bool IsEmail(string emailStr)
{
return Regex.IsMatch(emailStr, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
}
/// <summary>
/// 判断登录名是否是电话号码
/// </summary>
/// <param name="str_handset"></param>
/// <returns></returns>
public static bool IsHandset(string str_handset)
{
return Regex.IsMatch(str_handset, @"^[1]+[3,4,5,6,7,8]+\d{9}");
}

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Little scum · Posted on 7/14/2021 1:25:56 PM

Production environment usage validation

Transparent people · Posted on 3/8/2022 1:28:44 PM

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[Source] C# uses regular expressions to verify phone numbers, mobile phone numbers, ID numbers