Perl | uc()函数

原文:https://www.geeksforgeeks.org/perl-uc-function/

Perl 中的 uc()函数将传递给它的字符串转换成大写后返回。它类似于 ucfirst()函数，只返回大写的第一个字符。

注意:已经大写的字符不修改。

语法: uc String

返回:字符串大写。

例 1:

#!/usr/bin/perl -w

# String to be converted to UPPERCASE
$string = "geeksfOrGeeks";

print "Original String: $string\n";

# Converting the string to 
# UPPERCASE using uc() function
$UPPER_STRING = uc($string);

print "Modified String: $UPPER_STRING";

Output:

Original String: geeksfOrGeeks
Modified String: GEEKSFORGEEKS

例 2:

#!/usr/bin/perl -w

# String to be converted to UPPERCASE
$string = "WelComEToGeeKS";

print "Original String: $string\n";

# Converting the string to 
# UPPERCASE using uc() function
$UPPER_STRING = uc($string);

print "Modified String: $UPPER_STRING";

输出:

Original String: WelComEToGeeKS
Modified String: WELCOMETOGEEKS

---

我们一直在努力

apachecn/AiLearning

---