jQuery如何使用:even选择器(用法示例)

jQuery:even选择器,用于从元素中选择偶数索引。索引的个数从0开始。其工作原理与:odd选择器相同,但用于偶数。
语法

$(":even")

示例1:
< !DOCTYPE html> < html > < head > < script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" > < / script > < script > $(document).ready(function() { $("tr:even").css("background-color", "green"); }); < / script > < / head > < body > < center > < h1 > lsbin< / h1 > < table border = "1" > < tr > < th > Company< / th > < th > Country< / th > < / tr > < tr > < td > reliance< / td > < td > India< / td > < / tr > < tr > < td > flipkart< / td > < td > India< / td > < / tr > < tr > < td > walmart< / td > < td > American< / td > < / tr > < tr > < td > Ernst Handel< / td > < td > Austria< / td > < / tr > < tr > < td > Island Trading< / td > < td > UK< / td > < / tr > < / table > < / center > < / body > < / html >

输出如下:
jQuery如何使用:even选择器(用法示例)

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示例2:
< !DOCTYPE html> < html > < head > < script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" > < / script > < script > $(document).ready(function() { $("tr:even").css("background-color", "lightgreen"); }); < / script > < / head > < body > < center > < h1 > Welcome To lsbin < / h1 > < table border = "2" > < tr > < th > State< / th > < th > Capital< / th > < / tr > < tr > < td > uttar pradesh< / td > < td > lucknow< / td > < / tr > < tr > < td > punjab< / td > < td > chandigarh< / td > < / tr > < tr > < td > haryana< / td > < td > candigarh< / td > < / tr > < / table > < / center > < / body > < / html >

【jQuery如何使用:even选择器(用法示例)】输出如下:
jQuery如何使用:even选择器(用法示例)

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