如何解决Golang中“返回的参数过多”的问题？

Question

在我正在写的打印函数中，我试图根据switch语句的结果返回一个值；但是，我得到的错误太多，无法返回。

如果这个问题的答案很简单，请原谅我，但是函数有多少个参数可以返回一件事就不应该吗？还是需要为每个参数返回一件事。

这是我的代码。我在返回行上收到错误（返回的参数过多）。如何修复它，使其返回在switch语句中设置的字符串？

package bay

func Print(DATA []TD, include string, exclude []string, str string) {
    result := NBC(DATA, include, exclude, str)
    var sentAnal string
    switch result {
    case 1:
        sentAnal = "Strongly Negative"
    case 2:
        sentAnal = "Very Negative"
    case 3:
        sentAnal = "Negative"
    case 4:
        sentAnal = "Little Negative"
    case 5:
        sentAnal = "Neurtral"
    case 6:
        sentAnal = "Little Positive"
    case 7:
        sentAnal = "Positive"
    case 8:
        sentAnal = "More Positive"
    case 9:
        sentAnal = "Very Positive"
    case 10:
        sentAnal = "Strongly Positive"
    default:
        sentAnal = "Unknown"
    }
    return sentAnal
}

Answer 1

您需要指定输入参数后返回的内容，这不是python。

这个：

func Print(DATA []TD, include string, exclude []string, str string) {

应该：

func Print(DATA []TD, include string, exclude []string, str string) string {

推荐读物：

• http://golang.org/doc/effective_go.html#multiple-returns

• http://golang.org/doc/effective_go.html#named-results

甚至全部有效