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小写转换的 Perl | lc()函数

原文:https://www . geesforgeks . org/perl-LC-function-for-小写-conversion/

Perl 中的 lc()函数返回 VAR 的较低版本,如果 VAR 被省略,则返回$_。

语法: lc(VAR) 参数: VAR: 要转换为小写 的句子返回: VAR 的小写版本,如果省略 VAR 则返回$_ 的版本

例 1:

Perl 语言

#!/usr/bin/perl

# Original String containing both
# lower and upper case letters
$original_string = "GEEkS FoR geEkS";

# Converting the string to Lower case
$changed_string = lc($original_string);

# Printing the original String
print "Original String : $original_string\n";

# Printing the Changed String
print "Changed String : $changed_string\n";

输出:

Original String : GEEkS FoR geEkS
Changed String : geeks for geeks

例 2:

Perl 语言

#!/usr/bin/perl

# Original String containing
# lower and upper case letters
# as well as numerics
$original_string = "G33kS F0R g3EkS";

# Converting the string to Lower case
$changed_string = lc($original_string);

# Printing the original String
print "Original String : $original_string\n";

# Printing the Changed String
print "Changed String : $changed_string\n";

输出:

Original String : G33kS F0R g3EkS
Changed String : g33ks f0r g3eks


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