Lib.rs

rustls是字符串或&str，用于负载文件

This library is used for string and file loading. 

The current rustls-pemfile can only parse file loading

so it is very inconvenient

Of course,load is not fully working yet,

and I am learning the rustls-pemfile parsing process and the string forms that need to be processed.

使用案例，请参阅：示例