Go Language compilation record

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$6g mypak.go #先编译自定义包, generating mypak.6
$6g Test.go # Then compile, build test.6
$6l-o go_test test.6 # link to new file name Go_test
$ go_test
Hello, world

If you have custom packages in your program (such as the Mypak package referenced in this example test.go), you need to use import ("./mypak"), where./tell the compiler (compiler) to use our own package instead of looking in the default packages path, and compile, you need to compile mypak.go, and then compile test.go, to note the order