Perl le运算符

Perl中的 ‘le ‘运算符是字符串比较运算符之一，用于检查两个字符串是否相等。它用于检查其左边的字符串是否小于或等于其右边的字符串。

语法： String1 le String2

返回： 如果左参数小于或等于右参数，则 返回 1。

例1： String1小于String2

#!/usr/local/bin/perl
  
# Initializing Strings
a = "Geeks";b = "Welcome";
  
# Comparing the strings using le operator
c =a le b;
  
if(c == 1)
{
    print"String1 is less than or equal to String2";
}
else
{
    print"String1 is not less than or equal to String2";
}

输出。

String1 is less than or equal to String2

例2： 字符串1等于字符串2

#!/usr/local/bin/perl
  
# Initializing Strings
a = "Geeks";b = "Geeks";
  
# Comparing the strings using le operator
c =a le b;
  
if(c == 1)
{
    print"String1 is less than or equal to String2";
}
else
{
    print"String1 is not less than or equal to String2";
}

输出。

String1 is less than or equal to String2

例3： 字符串1大于字符串2

#!/usr/local/bin/perl
  
# Initializing Strings
a = "GeeksWelcome";b = "Geeks";
  
# Comparing the strings using le operator
c =a le b;
  
if(c == 1)
{
    print"String1 is less than or equal to String2";
}
else
{
    print"String1 is not less than or equal to String2";
}

输出。

String1 is not less than or equal to String2