Question

我正在接受一个变量 $var2="\\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated";

并希望将其更改为

$var2="//hydfs00/PUBLIC1/DEV/pkumar/ITT_TEST_BUILD/CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated";

我正在使用语法$var2 =~ s/\\/\//g;进行更改。但输出结果如/hydfs00PUBLIC1DEVpkumarITT_TEST_BUILDCS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated

请帮帮我。

Answer 1

"\\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated"是一个错误：

Unrecognized escape \P passed through at …
Unrecognized escape \D passed through at …
Unrecognized escape \p passed through at …
Unrecognized escape \I passed through at …
Unrecognized escape \C passed through at …

评估为\hydfs00PUBLIC1DEVpkumarITT_TEST_BUILDCS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated。

您希望single-quote the string以限制反斜杠转义为反斜杠和单引号。 '\\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated'评估为\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated。

让我们在开始时正确地逃避反斜杠，这样我们得到两个反斜杠。 '\\\\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated'评估为\\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated。这是你想要的字符串。

现在我们可以operate了解价值。

my $var = '\\\\hydfs00\PUBLIC1\DEV\pkumar\ITT_TEST_BUILD\CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated';
$var =~ s{ \\ }{/}gx; # replace any single backslash with a single slash
# $var now has the value
# //hydfs00/PUBLIC1/DEV/pkumar/ITT_TEST_BUILD/CS2.1_PROD_TEST_40550_LG_LC_Java_sp36_obfuscated

这是所有新手的东西。转到learn the language，read a book or two。

如何在Perl中将反斜杠转换为正斜杠

1 个答案: