doushi1473 2017-06-19 14:41
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语法错误:函数主体外的未声明语句位于fmt.Println(words,length)

I have the following in the interpreter in the tour of go:

package main

import "fmt"

var someString = "one    two   three four "

var words = strings.Fields(someString)

var length = len(words)

fmt.Println(words, length)

I get

tmp/sandbox216066597/main.go:11: syntax error: non-declaration statement outside function body

I recently corrected it by using var instead of := short syntax outside of any functions, but the error is the same as before.

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  • duanpu2272 2017-06-19 14:45
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    Your issue isn't with the variable declarations, it's with the fmt.Println line. You must move this inside of a function:

    func main() {
        fmt.Println(words, length)
    }
    

    GoPlay here:
    https://play.golang.org/p/JhUnNEIxIY

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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