go <command> [args]

　　命令：

　　　　bug:开始bug报告　　　　　　|　　build:编译package 和dependency

　　　　clean: 移除object文件和cache | 　　doc:展示go文档

　　　　env: 打印go环境信息　　　　 |　　fix:更新package信息

　　　　fmt: 格式化gopackage　　　  | 　　generate: 生成与变异

　　　　install: 安装和编译dependecy和package　　| list : 显示package和module

　　　　mod: module维护　　　　　  |　　run: 编译和运行go文件

　　　　test: 测试package　　　　 　　 

 go build [-o output] [-i] [build flags] [packages]

flag :
-a
	force rebuilding of packages that are already up-to-date.
-n
	print the commands but do not run them.
-p n
	the number of programs, such as build commands or
	test binaries, that can be run in parallel.
	The default is the number of CPUs available.
-race
	enable data race detection.
	Supported only on linux/amd64, freebsd/amd64, darwin/amd64 and windows/amd64.
-msan
	enable interoperation with memory sanitizer.
	Supported only on linux/amd64, linux/arm64
	and only with Clang/LLVM as the host C compiler.
-v
	print the names of packages as they are compiled.
-work
	print the name of the temporary work directory and
	do not delete it when exiting.
-x
	print the commands.

-asmflags '[pattern=]arg list'
	arguments to pass on each go tool asm invocation.
-buildmode mode
	build mode to use. See 'go help buildmode' for more.
-compiler name
	name of compiler to use, as in runtime.Compiler (gccgo or gc).
-gccgoflags '[pattern=]arg list'
	arguments to pass on each gccgo compiler/linker invocation.
-gcflags '[pattern=]arg list'
	arguments to pass on each go tool compile invocation.
-installsuffix suffix
	a suffix to use in the name of the package installation directory,
	in order to keep output separate from default builds.
	If using the -race flag, the install suffix is automatically set to race
	or, if set explicitly, has _race appended to it. Likewise for the -msan
	flag. Using a -buildmode option that requires non-default compile flags
	has a similar effect.
-ldflags '[pattern=]arg list'
	arguments to pass on each go tool link invocation.
-linkshared
	link against shared libraries previously created with
	-buildmode=shared.
-mod mode
	module download mode to use: readonly or vendor.
	See 'go help modules' for more.
-pkgdir dir
	install and load all packages from dir instead of the usual locations.
	For example, when building with a non-standard configuration,
	use -pkgdir to keep generated packages in a separate location.
-tags 'tag list'
	a space-separated list of build tags to consider satisfied during the
	build. For more information about build tags, see the description of
	build constraints in the documentation for the go/build package.
-toolexec 'cmd args'
	a program to use to invoke toolchain programs like vet and asm.
	For example, instead of running asm, the go command will run
	'cmd args /path/to/asm <arguments for asm>'.
go clean [clean flags] [build flags] [packages]

go doc <pkg>
go doc <sym>[.<methodOrField>]
go doc [<pkg>.]<sym>[.<methodOrField>]
go doc [<pkg>.][<sym>.]<methodOrField>

go get [-d] [-f] [-t] [-u] [-v] [-fix] [-insecure] [build flags] [packages]

go install [-i] [build flags] [packages]

go list [-f format] [-json] [-m] [list flags] [build flags] [packages]

go mod <command> [arguments]
　　download    download modules to local cache

　　edit        edit go.mod from tools or scripts
　　graph       print module requirement graph
　　init        initialize new module in current directory
　　tidy        add missing and remove unused modules
　　vendor      make vendored copy of dependencies
　　verify      verify dependencies have expected content
　　why         explain why packages or modules are needed

go run [build flags] [-exec xprog] package [arguments...]

go test [build/test flags] [packages] [build/test flags & test binary flags]