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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Go:“变量声明和未使用”编译错误
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