function()用作值编译错误 [英] function() used as value compile error

问题描述

我尝试通过调整示例来学习Go的基础知识，方法如下:

I'm trying to learn the basics of Go by tweaking examples as I go along the tutorial located here:

http://tour.golang.org/#9

这是我写的一个小函数，可以将所有字符变成大写.

Here's a small function I wrote that just turns ever character to all caps.

package main

import (
    "fmt"
    "strings"
)

func capitalize(name string) {
    name = strings.ToTitle(name)
    return
}

func main() {
    test := "Sergio"    
    fmt.Println(capitalize(test))
}

我遇到此异常:

prog.go:15:将大写(测试)用作值

prog.go:15: capitalize(test) used as value

有任何明显的错误吗?

推荐答案

您缺少 capitalize()的返回类型:

package main

import (
        "fmt"
        "strings"
)

func capitalize(name string) string {
        return strings.ToTitle(name)
}

func main() {
        test := "Sergio"
        fmt.Println(capitalize(test))
}

游乐场

输出:

SERGIO

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