大小写转换|平片假名转换|简繁转换

Input

Output

Reference

    //
    // Summary:
    //     Indicates which type of conversion to perform when calling the StrConv function.
    [Flags]
    public enum VbStrConv
    {
        //
        // Summary:
        //     Performs no conversion.
        None = 0,
        //
        // Summary:
        //     Converts the string to uppercase characters. This member is equivalent to the
        //     Visual Basic constant vbUpperCase.
        Uppercase = 1,
        //
        // Summary:
        //     Converts the string to lowercase characters. This member is equivalent to the
        //     Visual Basic constant vbLowerCase.
        Lowercase = 2,
        //
        // Summary:
        //     Converts the first letter of every word in the string to uppercase. This member
        //     is equivalent to the Visual Basic constant vbProperCase.
        ProperCase = 3,
        //
        // Summary:
        //     Converts narrow (single-byte) characters in the string to wide (double-byte)
        //     characters. Applies to Asian locales. This member is equivalent to the Visual
        //     Basic constant vbWide.
        Wide = 4,
        //
        // Summary:
        //     Converts wide (double-byte) characters in the string to narrow (single-byte)
        //     characters. Applies to Asian locales. This member is equivalent to the Visual
        //     Basic constant vbNarrow.
        Narrow = 8,
        //
        // Summary:
        //     Converts Hiragana characters in the string to Katakana characters. Applies to
        //     Japanese locale only. This member is equivalent to the Visual Basic constant
        //     vbKatakana.
        Katakana = 16,
        //
        // Summary:
        //     Converts Katakana characters in the string to Hiragana characters. Applies to
        //     Japanese locale only. This member is equivalent to the Visual Basic constant
        //     vbHiragana.
        Hiragana = 32,
        //
        // Summary:
        //     Converts the string to Simplified Chinese characters. This member is equivalent
        //     to the Visual Basic constant vbSimplifiedChinese.
        SimplifiedChinese = 256,
        //
        // Summary:
        //     Converts the string to Traditional Chinese characters. This member is equivalent
        //     to the Visual Basic constant vbTraditionalChinese.
        TraditionalChinese = 512,
        //
        // Summary:
        //     Converts the string from file system rules for casing to linguistic rules. This
        //     member is equivalent to the Visual Basic constant vbLinguisticCasing.
        LinguisticCasing = 1024
    }