如何解决Golang中“返回的参数过多”的问题?

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

}

回答:

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

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