Detailed explanation of the difference between Go Println and Printf

Println and Printf are both public methods in the fmt package; functions commonly used when printing information is needed, so what is the difference between the two functions?

Attach the code

package main
import (
 "time"
 "fmt"
)
const (
 Man = 1
 Female = 2
)
func main(){
 timer := ().Unix()
 if(timer % Female == 0){
  ("%d is Female", timer)
  ("%d is Female", timer)
 }else{
  ("%d is Man", timer)
  ("%d is Man", timer)
 }
}

Running results:

%d is Man 1529049077 // println output result

1529049077 is Man // printf output result

The results can be seen

Printf: It can print out formatted strings, Println cannot do;

Summarize:

println will output as it is based on your input format, printf needs to format the output and have the output format;

Supplementary: Go Basics - Difference between Println and Print and Printf in Go

1、Println

When outputting in Println:

package main 
import ( 
 f "fmt" 
) 
func main(){ 
 ("hello","world","hello","world") 
 ("hello","world","hello","world") 
}

Output:

/private/var/folders/yt/24f_qg2n6879g2fg85994jf40000gn/T/___go_build_helloworld_go #gosetup

hello world hello world

hello world hello world

Process finished with exit code 0

When multiple terms are output in the same output function, there are spaces in hello and world.

Winding lines between different output functions

2、Print

When outputting in Print:

package main 
import f "fmt" 
func main(){ 
 ("hello","world","hello","world") 
 ("hello","world","hello","world") 
}

Output:

/private/var/folders/yt/24f_qg2n6879g2fg85994jf40000gn/T/___go_build_helloworld_go #gosetup

helloworldhelloworldhelloworldhelloworld

Process finished with exit code 0

When multiple terms are everywhere in the same output function, there are no spaces in hello and world

No line breaks between different output functions

3、Printf

When Printf outputs:

package main 
import f "fmt" 
func main(){ 
 a := 10 
 b := 20 
 c := "hello" 
 ("a=%d,b=%d",a,b) 
 ("c=%s",c) 
}

Output:

/private/var/folders/yt/24f_qg2n6879g2fg85994jf40000gn/T/___go_build_helloworld_go #gosetup

a=10,b=20c=hello

Process finished with exit code 0

Parameters can be formatted and output, and there is no line break in different output functions.

Summarize:

The above is personal experience. I hope you can give you a reference and I hope you can support me more. If there are any mistakes or no complete considerations, I would like to give you advice.