Perl | ne 运算符

原文:https://www.geeksforgeeks.org/perl-ne-operator/

Perl 中的 ne 运算符是用于检查两个字符串是否相等的字符串比较运算符之一。它用于检查左边的字符串是否与右边的字符串不相等。

语法: String1 ne String2

如果左参数不等于右参数，则返回: 1

例 1:

#!/usr/local/bin/perl

# Initializing Strings
$a = "Welcome";
$b = "Geeks";

# Comparing the strings using ne operator
$c = $a ne $b;

if($c == 1)
{
    print"String1 is not equal to String2";
}
else
{
    print"String1 is equal to String2";
}

Output:

String1 is not equal to String2

例 2:

#!/usr/local/bin/perl

# Initializing Strings
$a = "Geeks";
$b = "Geeks";

# Comparing the strings using ne operator
$c = $a ne $b;

if($c == 1)
{
    print"String1 is not equal to String2";
}
else
{
    print"String1 is equal to String2";
}

Output:

String1 is equal to String2

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