Type接口
PkgPath()string
原文如下：
// PkgPath returns a defined type's package path, that is, the import path
// that uniquely identifies the package, such as "encoding/base64".
// If the type was predeclared (string, error) or not defined (*T, struct{},
// []int, or A where A is an alias for a non-defined type), the package path
// will be the empty string.
【分析】
标签：string,package,defined,系统,reflect,Go,path,type From： https://www.cnblogs.com/tinaluo/p/16663920.html