Go：“变量声明和未使用”编译错误 [英] Go: "variable declared and not used" compilation error

问题描述

我正在学习Google的新语言前往。我只是尝试东西，我注意到
，如果你声明一个变量，不做任何事情，go编译器（ 8g 在我的情况）失败

编译时出现此错误： hello.go：9：声明并未使用错误。我很惊讶，因为大多数语言编译器只是警告有关未使用的变量，但仍然编译。

I am learning Google's new language Go. I am just trying stuff out and I noticed that if you declare a variable and do not do anything with it the go compiler (8g in my case) fails to
compile with this error: hello.go:9: error declared and not used. I was suprised at this since most language compilers just warn you about unused variables but still compile.

有没有我能解决这个问题？我检查了编译器的文档，我没有看到任何会改变这种行为。有没有办法只是删除错误，以便这将编译？

Is there anyway I can get around this? I checked the documentation for the compiler and I don't see anything that would change this behaviour. Is there a way to just delete error so that this will compile?

package main

import "fmt"
import "os"

func main()
{
     fmt.Printf("Hello World\n");
     cwd, error := os.Getwd();
     fmt.Printf(cwd);
}

推荐答案

/ p>

You could try this:

cwd, _ := os.Getwd();

但似乎最好是像Jurily的答案保持错误，出错了。

but it seems like it would be better to keep the error like in Jurily's answer so you know if something went wrong.

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