英文:
How can I change the variable inside the if statement of switch statement in Golang?
问题
我是一个Golang的新手，现在我有一个要求，需要在if语句中更改一个值。
这是我的示例代码：
package main
func main() {
a := "hi"
pull_enable := true
switch a {
case "hi":
image_list := []float32{
0,
2,
}
for image := 0; image < len(image_list); image++ {
if image == 0 {
pull_enable = true
break
}
}
}
}
我在switch语句外定义了一个变量pull_enable，我想在if语句中更改这个变量的值，但是当我构建它时，遇到了以下问题：
# command-line-arguments
pull_enable declared but not used
我想知道如何解决这个问题。有什么想法吗？
英文:
I am a newbie in Golang and now I have a requirement to change a value inside the if statement.
Here is my dummy code.
package main
func main() {
a := "hi"
pull_enable := true
switch a {
case "hi":
image_list := []float32{
0,
2,
}
for image:=0; image<len(image_list); image++{
if image == 0 {
pull_enable = true
break
}
}
}
}
I define a variable pull_enable outside of switch statement, and I want to change this variable value in the if statement, but when I built it, it encountered an issue below.
# command-line-arguments
pull_enable declared but not used
I am wondering how I can fix this issue. Is there any idea?
答案1
得分: 1
package main
import "fmt"
func main() {
a := "hi"
pullEnable := true
switch a {
case "hi":
image_list := []float32{
0,
2,
}
for image := 0; image < len(image_list); image++ {
if image == 0 {
pullEnable = true
break
}
}
}
fmt.Println(pullEnable)
}
这是你提供的代码的中文翻译。
英文:
package main
import "fmt"
func main() {
a := "hi"
pullEnable := true
switch a {
case "hi":
image_list := []float32{
0,
2,
}
for image := 0; image < len(image_list); image++ {
if image == 0 {
pullEnable = true
break
}
}
}
fmt.Println(pullEnable)
}
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