Lets Start With First Hello world Program

Lets Start With First Hello world Program#

string">"comment">// visit :-  gopherlabs.kubedaily.com
package main
 
string">"comment">// main package declaration
import string">"fmt"
 
string">"comment">// import libraries
func main() {
	string">"comment">// declare main function with func keyword followed by main()
	fmt.Println(string">"Hello World")
	string">"comment">// fmt is format
}
 
string">"comment">// output :- hello_world
 

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• A complete program is created by linking a single, unimported package called the main package with all the packages it imports, transitively. The main package must have package name main and declare a function main that takes no arguments and returns no value.

func main() { ... }
 

• Program execution begins by initializing the main package and then invoking the function main. When that function invocation returns, the program exits. It does not wait for other (non-main) goroutines to complete.

• Go: Meaning of the 'fmt' package acronym
• fmt is short for format.
• Package fmt implements formatted I/O with functions analogous to C's printf and scanf. The format 'verbs' are derived from C's but are simpler.