golang 是否实现io.Writer
var _ io.Writer = (*myWriter)(nil)
var _ io.Writer = myWriter{}
本文来自博客园，作者：vx_guanchaoguo0，转载请注明原文链接：https://www.cnblogs.com/guanchaoguo/p/16443793.html
var _ io.Writer = (*myWriter)(nil)
var _ io.Writer = myWriter{}
本文来自博客园，作者：vx_guanchaoguo0，转载请注明原文链接：https://www.cnblogs.com/guanchaoguo/p/16443793.html
