go语言入门一

//0. organizing code with package in golang // go语言用包来组织代码。 //1. package name with main function must be main. // 包含main函数的包名必须是main。 package main //2. key word import tells compiler which packages to import. // import 告诉编译器导入哪些包。 import "fmt" //3. define main function. 定义main 函数 func main() { //4. '{' must be this line of function name. 括号必须和函数名在同一行 //5. do not need ';' after statement. 语句后不需要分号 fmt.Println("Hello, Golang World!") } //6. comment is same with c lang 注释与c语言相同 // use '//' with line and use '/* ...... * /' with block //7. use the followed command to run go program // 用下面的命令运行go程序 /* go run hello.go */