Check number 客户端发送的手机号格式为: "+86 111 1111 1111"，归一化.

IsAlNum check character is a alnum or not.

IsAlNumString returns true if an alpha numeric string consists of characters a-zA-Z0-9.

IsLetter check character is a letter or not.

IsLower check letter is lower case or not.

IsNumber check character is a number or not.

IsUpper check letter is upper case or not.

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instead of original unserialize function.

Duration be used toml unmarshal string time, like 1s, 500ms.