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