Golang惯用方式从多行字符串中删除空白行

问题描述

如果我有多行字符串，例如

If I have a multi line string like

this is a line

this is another line

删除空行的最佳方法是什么?我可以通过拆分，迭代和进行条件检查来使其工作，但是还有更好的方法吗?

what is the best way to remove the empty line? I could make it work by splitting, iterating, and doing a condition check, but is there a better way?

推荐答案

假定您要删除输出的空行作为输出的相同字符串，我将使用正则表达式:

Assumming that you want to have the same string with empty lines removed as an output, I would use regular expressions:

import (
    "fmt"
    "regexp"
)

func main() {

    var s = `line 1
line 2

line 3`

    regex, err := regexp.Compile("\n\n")
    if err != nil {
        return
    }
    s = regex.ReplaceAllString(s, "\n")

    fmt.Println(s)
}

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