看不懂 var _

lanceyb · · 2288 次点击

~~~golang var ( _ ConnWithTimeout = (*conn)(nil) ) ~~~ [原代码链接](https://github.com/gomodule/redigo/blob/master/redis/conn.go#L33) 看 [redigo](github.com/gomodule/redigo) 源码，发现文件开头定义了个 `_` 只读的变量，一头懵~~ 求助：作者为啥这么写？

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zwb1002

cannot use (*conn)(nil) (type *conn) as type ConnWithTimeout in assignment: *conn does not implement ConnWithTimeout (wrong type for Do method) have Do(string, ...interface {}) (interface {}, error) want Do(string) 是不是reids源码有问题怎么解决的

评论于 2019-10-05 18:54:00

#7

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