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jQuery Gets Objects Basic Selection and Level_jquery

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2016-05-16 18:26:011348browse

Select based on id (only one object can be selected by id), such as: $("#div2")

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Select according to tags, such as: $("span")
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Class name based on style Select, such as: $(".class1")
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Selecting all objects is: $("*")

Can be mixed, such as: $("#btn2, .class1, span")

Copy code The code is as follows:







span1









< /div>
span2


<script> <br>//Modify the color style of the selected object to red <br>$("#btn2, .class1, span").css("color", "red"); <br></script>


jQuery Gets Objects Basic Selection and Level_jquery
Can be selected hierarchically, such as: $(".class1 div label")

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< ;label>333

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For example: $(".class1 span") or $(".class1").find("span")

< div id="id1">111

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Select only from sub-layers, such as: $(".class1 > span"); If there is no middle >, all eligible descendant objects below it will be selected

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followed by, such as: $("div span"); This will select everything immediately following the div span

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At the same level (behind), such as: $("#id2 ~ *"); This is to select all (*) objects at the same level behind #id2

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< div id="id2">222


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Mixed use, such as: $( "#id3 label, #id3 ~ span")

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< ;span>444

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Select other elements at the same level, such as: $ ("#id2").siblings()

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< span>444

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Select other spans at the same level, such as: $( "#id2").siblings("span")

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