Go language variable definition usage example

This article describes the usage of go language variable definitions. Share it for your reference. The details are as follows:

The var statement defines a list of variables; like the list of parameter of a function, the type is followed.

A variable definition can contain an initial value, and each variable corresponds to one.

If initialization is using an expression, the type can be omitted; the variable obtains the type from the initial value.

In a function, the := concise assignment statement can be used instead of the var definition where the type is explicit.

(:= structure cannot be used outside the function, and every syntax block outside the function must start with a keyword.)

I hope this article will be helpful to everyone's Go language programming.