正則表達式包含大小寫數字?public static class StringHelper{，我來為大家科普一下關于正則表達式包含大小寫數字?以下内容希望對你有幫助!

正則表達式包含大小寫數字

public static class StringHelper

{

//分數、帶分數

public static string sMatchNumInch = @"(([1-9]\d*-)?[1-9]\d*/[1-9]\d*|[1-9]\d*)""";

//數字

public static string sMatchNum = @"((-|)([1-9] \d*|0)(\.\d )?|0)";

//整數

public static string sMatchNumInt = @"((|-)[1-9] (\d )?|0)";

//正整數

public static string sMatchNumIntPositive = @"([1-9] (\d )?)";

//負整數

public static string sMatchNumIntNegative = @"(-[1-9] (\d )?)";

//非負整數

public static string sMatchNumIntNonNegative = @"([1-9] (\d )?|0)";

//非正整數

public static string sMatchNumIntNonPositive = @"(-[1-9] (\d )?|0)";

//正數

public static string sMatchNumPositive = @"(([1-9] \d*)?((|0)\.\d )?)";

//負數

public static string sMatchNumNegative = @"(-([1-9] \d*|0)(\.\d )?)";

//非負數

public static string sMatchNumNonNegative = @"(([1-9] \d*)?((|0)\.\d )?)";

//非正數

public static string sMatchNumNonPositive = @"(-([1-9] \d*|0)(\.\d )?|0)";

/// <summary>

/// 判斷字符串是否是數字

/// </summary>

/// <param name="str"></param>

/// <param name="nt"></param>

/// <returns></returns>

/// <summary>

public static bool IsNumType(this string str, NumType nt)

{

if (str == "")

return false;

string matchString = "";

switch (nt)

{

case NumType.Number:

//數字

matchString = sMatchNum;

break;

case NumType.PositiveInt:

//正整數

matchString = sMatchNumIntPositive;

break;

case NumType.NonNegativeInt:

//非負整數（正整數 0）

matchString = sMatchNumIntNonNegative;

break;

case NumType.NonPositiveInt:

//非正整數（負整數 0）

matchString = sMatchNumIntNonPositive;

break;

case NumType.NegativeInt:

//負整數

matchString = sMatchNumIntNegative;

break;

case NumType.Int:

//整數

matchString = sMatchNumInt;

break;

case NumType.NonNegative:

//非負數（正數 0）

matchString = sMatchNumNonNegative;

break;

case NumType.Positive:

//正數

matchString = sMatchNumPositive;

break;

case NumType.NonPositive:

//非正數（負數 0）

matchString = sMatchNumNonPositive;

break;

case NumType.Negative:

//負數

matchString = sMatchNumNegative;

break;

default:

break;

}

return Regex.IsMatch(str, matchString, RegexOptions.IgnoreCase);

}

/// <summary>

/// 第1位：9表示"非"，1表示"數"，2表示"整數"

/// 末位：1表示正，0表示負

/// </summary>

public enum NumType

{

/// <summary>

/// 浮點數

/// </summary>

Number = 1,

/// <summary>

/// 整數

/// </summary>

Int = 2,

/// <summary>

/// 正數

/// </summary>

Positive = 11,

/// <summary>

/// 負數

/// </summary>

Negative = 10,

/// <summary>

/// 正整數

/// </summary>

PositiveInt = 21,

/// <summary>

/// 負整數

/// </summary>

NegativeInt = 20,

/// <summary>

/// 非正數

/// </summary>

NonPositive = 911,

/// <summary>

/// 非負數

/// </summary>

NonNegative = 910,

/// <summary>

/// 非正整數

/// </summary>

NonPositiveInt = 921,

/// <summary>

/// 非負整數

/// </summary>

NonNegativeInt = 920,

}

}

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