当前位置：网站首页>Go language self-study series | if else statement in golang

Go language self-study series | if else statement in golang

2022-07-03 15:41:00 【51CTO】

Video source ：B standing 《golang Introduction to project practice [2021 newest Go Language course , There is no nonsense , Dry only ！ Ongoing update ...]》

Organize the teacher's course content and test notes while studying , And share it with you , Infringement is deleted , Thank you for your support ！

Attach summary sticker ：​ ​Go Language self-study series | Summary _COCOgsta The blog of -CSDN Blog ​​

go In language if else Statement can be selected according to a given condition .

go Linguistic if else Sentence syntax 

      
      

       
       if  Boolean expression  {
       
       
   /*  The Boolean expression is  true  When the  */
       
       
} else {
       
       
  /*  The Boolean expression is  false  When the  */
       
       
}
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    • 
       
       
  • 3.
    • 
       
       
  • 4.
    • 
       
       
  • 5.
    •

go Language if else Statement instance

Compare the size of two numbers 

      
      

       
       package main
       
       

       
       
import "fmt"
       
       

       
       
func f1() {
       
       
    a := 1
       
       
    b := 2
       
       
    if a > b {
       
       
        fmt.Printf("\"a>b\": %v\n", "a>b")
       
       
    } else {
       
       
        fmt.Printf("\"a<=b\": %v\n", "a<b")
       
       
    }
       
       
}
       
       

       
       
func main() {
       
       
    f1()
       
       
}
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    • 
       
       
  • 3.
    • 
       
       
  • 4.
    • 
       
       
  • 5.
    • 
       
       
  • 6.
    • 
       
       
  • 7.
    • 
       
       
  • 8.
    • 
       
       
  • 9.
    • 
       
       
  • 10.
    • 
       
       
  • 11.
    • 
       
       
  • 12.
    • 
       
       
  • 13.
    • 
       
       
  • 14.
    • 
       
       
  • 15.
    • 
       
       
  • 16.
    • 
       
       
  • 17.
    •

Running results 

      
      

       
       [Running] go run "/Users/guoliang/SynologyDrive/ software development /go/golang Introduction to project practice /goproject/360duote.com/pro01/test.go"
       
       
"a<=b": a<b
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    •

Judge whether a number is odd or even 

      
      

       
       package main
       
       

       
       
import "fmt"
       
       

       
       
func f2() {
       
       
    var s int
       
       
    fmt.Println(" Enter a number ：")
       
       
    fmt.Scan(&s)
       
       

       
       
    if s%2 == 0 {
       
       
        fmt.Print("s  It's even \n")
       
       
    } else {
       
       
        fmt.Print("s  Not even numbers \n")
       
       
    }
       
       
    fmt.Print("s  The value of is ：", s)
       
       
}
       
       

       
       
func main() {
       
       
    f2()
       
       
}
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    • 
       
       
  • 3.
    • 
       
       
  • 4.
    • 
       
       
  • 5.
    • 
       
       
  • 6.
    • 
       
       
  • 7.
    • 
       
       
  • 8.
    • 
       
       
  • 9.
    • 
       
       
  • 10.
    • 
       
       
  • 11.
    • 
       
       
  • 12.
    • 
       
       
  • 13.
    • 
       
       
  • 14.
    • 
       
       
  • 15.
    • 
       
       
  • 16.
    • 
       
       
  • 17.
    • 
       
       
  • 18.
    • 
       
       
  • 19.
    • 
       
       
  • 20.
    •

Running results 

      
      

       
       guoliangs-MacBook-Pro-15-inch:pro01 guoliang$ go run test.go
       
       
 Enter a number ：
       
       
8
       
       
s  It's even 
       
       
s  The value of is ：8g
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    • 
       
       
  • 3.
    • 
       
       
  • 4.
    • 
       
       
  • 5.
    •

Judging whether a person is an adult 

      
      

       
       package main
       
       

       
       
import "fmt"
       
       

       
       
func f3() {
       
       
    age := 20
       
       
    if age >= 18 {
       
       
        fmt.Println(" You are an adult ")
       
       
    } else {
       
       
        fmt.Println(" You're underage ")
       
       
    }
       
       
}
       
       
func main() {
       
       
    f3()
       
       
}
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    • 
       
       
  • 3.
    • 
       
       
  • 4.
    • 
       
       
  • 5.
    • 
       
       
  • 6.
    • 
       
       
  • 7.
    • 
       
       
  • 8.
    • 
       
       
  • 9.
    • 
       
       
  • 10.
    • 
       
       
  • 11.
    • 
       
       
  • 12.
    • 
       
       
  • 13.
    • 
       
       
  • 14.
    • 
       
       
  • 15.
    •

Running results 

      
      

       
       [Running] go run "/Users/guoliang/SynologyDrive/ software development /go/golang Introduction to project practice /goproject/360duote.com/pro01/test.go"
       
       
 You are an adult 
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    •

Special way of writing , stay if Add execution statement before 

      
      

       
       package main
       
       

       
       
import "fmt"
       
       

       
       
func f4() {
       
       
    if age := 20; age >= 18 {
       
       
        fmt.Println(" You are an adult ")
       
       
    } else {
       
       
        fmt.Println(" You're underage ")
       
       
    }
       
       
}
       
       

       
       
func main() {
       
       
    f4()
       
       
}
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    • 
       
       
  • 3.
    • 
       
       
  • 4.
    • 
       
       
  • 5.
    • 
       
       
  • 6.
    • 
       
       
  • 7.
    • 
       
       
  • 8.
    • 
       
       
  • 9.
    • 
       
       
  • 10.
    • 
       
       
  • 11.
    • 
       
       
  • 12.
    • 
       
       
  • 13.
    • 
       
       
  • 14.
    • 
       
       
  • 15.
    •

Running results 

      
      

       
       [Running] go run "/Users/guoliang/SynologyDrive/ software development /go/golang Introduction to project practice /goproject/360duote.com/pro01/test.go"
       
       
 You are an adult 
      
      

      
      
    
       
       
  • 1.
    • 
       
       
  • 2.
    •

go Language if Statement use prompt ：

  1. You do not need parentheses to enclose conditions
  2. Curly braces {} There must be , Even if there is only one line of statement
  3. The left parenthesis must be in if or else On the same line
  4. stay if after , Before conditional statement , You can add variable initialization statements , Use ; separation
原网站

版权声明
本文为[51CTO]所创，转载请带上原文链接，感谢
https://yzsam.com/2022/184/202207031533451369.html

边栏推荐

猜你喜欢

随机推荐