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慕课网教程案例/jQuery入门教程/jQuery表单事件/change事件.html

Lines changed: 12 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -7,8 +7,7 @@
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<style>
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.left div,
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.right div {
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width: 500px;
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height: 50px;
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width: 100%;
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padding: 5px;
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margin: 5px;
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float: left;
@@ -42,22 +41,25 @@ <h2>input、textarea与select</h2>
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<textarea class="target2" rows="3" cols="20">多行的文本输入控件</textarea>
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</div>
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</div>
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输出结果:
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<div id="result"></div>
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<script type="text/javascript">
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//监听input值的改变
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$('.target1').change(function(e) {
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alert(e.target.value)
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$("#result").html(e.target.value)
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});
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//监听select:
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$(".target2").focusin(function(e) {
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alert(e.target.value)
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$(".target2").change(function(e) {
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$("#result").html(e.target.value)
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})
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//监听textarea:
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$(".target3").focusin(function(e) {
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alert(e.target.value)
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//监听textarea:
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$(".target3").change(function(e) {
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$("#result").html(e.target.value)
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})
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</script>
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</body>
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</html>

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