<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>title</title>
</head>
<body>
<select id="test" name="">
<option value="1">text1</option>
<option value="2">text2</option>
</select>
<button id="my">获取</button>
</body>
<script src="jquery-2.2.2.min.js"></script>
<script>
$("#my").on("click",function () {
var textvalue = $("#test option:selected");
console.log(textvalue.val());//值
console.log(textvalue.text());//文本
})
</script>
</html>
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offset、client、scroll (width,height、left,top、X,Y)
一图搞懂javascript中的this与call/apply/bind的6中关系
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