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This article mainly shows you the "Go language: = how to use", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "Go language: = how to use" this article.

1. Single variable: =

A special operator has been added to the Go language: =, which allows variables to be assigned directly without declaration. It is similar to declaring a variable with a value, except that the var keyword is missing, such as the variable name: = variable value, which is tantamount to declaring a variable with a value whose type is the same as its variable value.

As you can see, in the above code, we did not declare the variable helloworld in advance, but directly used it, and the program did not report an error, and the console printed out "Hello World!" normally. The appearance of the = symbol saves us a lot of statements for writing variable declarations, which we generally use to declare variables in actual development.

two。 Multivariable: =

The: = operator is also supported in the multivariable assignment system of the Go language. You can use forms such as variable name, variable name: = variable value, variable value to perform multivariable operations. It is used in a similar way to multivariable declaration with values, except that the var keyword is missing.

In the Go language, in order to make the development more efficient, more and more people will use: = this unique assignment method of the Go language, it may not be suitable at first, but it simply won't be too easy to use after getting started.

3. Summary: =

This operator and = can also be assigned to univariate and multivariable values. It is important to note that when using: = to assign a value to a variable, it is important to see if the variable has been declared, and if it has been declared, there is no need to use: =.

What is the difference between = and: = in the Go language

= is the assignment, and: = is the declaration of the variable and the assignment.

/ / = use must first var declaration such as: var aa=100// or var b = 100max / or var c int = 100max /: = is declared and assigned, and the system automatically infers the type, does not need the var keyword d: = 100 is "Go language: = how to use" all the content of this article, thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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