Go language Learning-function research

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The Go language supports multi-valued returns.

The Go function starts with a 0 initialization of the named return value or result parameter, depending on its type.

Deferred code DEFER statement: functions specified after defer are called before the function exits, and deferred functions are executed in the order of LIFO (last in, first out).

Functions in the go language can be called as values.

Example A: = GoGoGo () {fmt. Println ("GO")}//define an anonymous function GoGoGo

A ()//When running a, it is running GoGoGo

With this, you can use the function name as a parameter value so that the function can be used as a callback function.