将中文汉字转换成Unicode码，用于在通信中传递字符串，接收端收到后用相应函数进行转化成字符串-Chinese characters will be converted into Unicode code for the communications pass strings, after receiving end received with the corresponding functions into strings

unicode字符串操作,包括长度、拷贝等常用操作，以添加服务代码为例。-unicode string operations, including the length, copy and other common operations, to add the service code, for example.

实现普通字符串与Unicode字符串的转换-Show Unicode of String