比较操作符

发表于:2007-07-01来源:作者:点击数: 标签:
比较操作符,正如它的名字所示,允许您比较两个值。 Table 7-4. Comparson Operators(表7-4 比较操作符) example name result?/FONT $a == $b Equal?/FONT True if $a is equal to $b.?/FONT $a != $b Not equal True if $a is not equal to $b.?/FONT $a $
比较操作符,正如它的名字所示,允许您比较两个值。

 

Table 7-4. Comparson Operators(表7-4 比较操作符)

example name result?/FONT>
$a == $b Equal?/FONT> True if $a is equal to $b.?/FONT>
$a != $b Not equal True if $a is not equal to $b.?/FONT>
$a < $b Less than?/FONT> True if $a is strictly less than $b.?/FONT>
$a > $b Greater than?/FONT> True if $a is strictly greater than $b.?/FONT>
$a <= $b Less than or equal to?/FONT> True if $a is less than or equal to $b.?/FONT>
$a >= $b Greater than or equal to?/FONT> True if $a is greater than or equal to $b.






原文转自:http://www.ltesting.net