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This article will explain in detail what the basic grammar of the Go language is, and the editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

GO marker

Go programs can be composed of multiple tags, which can be keywords, identifiers, constants, strings, and symbols. For example, the following GO statement consists of six tags:

Fmt.Println ("Hello, World!")

The 6 tags are (one per line):

1: fmt 2:. 3: Println 4: (5: "Hello, World!" 6:)

Line delimiter

In a Go program, a line represents the end of a statement. Each statement does not need to end with a semicolon like other languages in the C family, because the work will be done automatically by the Go compiler.

If you plan to write multiple statements on the same line, they must be used; artificially distinguished, but in actual development we do not encourage this practice.

Fmt.Println ("Hello, World!")

Annotation

/ / single-line comments

/ *

Multiline comment

, /

Identifier

An identifier is actually a sequence of one or more letters (AbeliZ and axiz) numbers (0,9) and underscores _, but the first character must be a letter or underscore, not a number.

The following are valid identifiers:

Mahesh kumar abc move_name a_123

Myname50 _ temp j a23b9 retVal

Keyword

Breakdefaultfuncinterfaceselectcasedefergomapstructchanelsegotopackageswitchconstfallthroughifrangetypecontinueforimportreturnvar

In addition to the keywords described above, the Go language has 36 predefined identifiers:

Appendboolbytecapclosecomplexcomplex64complex128uint16copyfalsefloat32float64imagintint8int16uint32int32int64iotalenmakenewnilpanicuint64printprintlnrealrecoverstringtrueuintuint8uintptr

Programs generally consist of keywords, constants, variables, operators, types, and functions.

These separators may be used in the program: parentheses (), braces [], and curly braces {}.

These punctuation marks may be used in the program:.,.

This is the end of this article on "what are the basic grammars of Go language?". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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