Question

Powershell在写入文件时会忽略CRLF

下面的复制代码

$part1 = "this is one line
This is a second line 
this is not
"
$part2 = "this is almost the last line
this is the last line."

$code =  $part1
$code += $part2

$code

$code  | out-file "test.cs" 
notepad test.cs

当我在记事本和命令提示符下查看输出时，缺少CRLF换行符。

Answer 1

这里的问题是在控制台上按Enter键不会在字符串中间产生CRLF，而只是产生LF。您要么需要在字符串中添加CRLF（`r`n）字符，要么以其他方式构建它们。下面的方法仅用CRLF替换LF或CRLF序列。我使用-join运算符来组合字符串。

$part1 = "this is one line
This is a second line 
this is not
"
$part2 = "this is almost the last line
this is the last line."

$code = -join ($part1 -replace "\r?\n","`r`n"),($part2 -replace "\r?\n","`r`n")
$code  | out-file "test.cs" 
notepad test.cs

您可以将变量构建为字符串数组。然后，当通过管道访问对象时，CRLF将自动添加到输出中的每个元素。

$part1 = "this is one line","This is a second line","this is not"
$part2 = "this is almost the last line","this is the last line."
$code = $part1 + $part2
$code | out-file test.cs

您还可以使用-split运算符拆分LF或CRLF字符。请记住，$part1 + $part2仅在$part1末尾有一个LF时才起作用。

$part1 = "this is one line
This is a second line 
this is not
"
$part2 = "this is almost the last line
this is the last line."

$code = ($part1 + $part2) -split "\r?\n"
$code | out-file test.cs

Powershell省略了“输出文件”的CRLF输出

1 个答案: