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@@ -0,0 +1,22 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+</head>
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+<body>
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+ <div id="box" data-aa="你好" data-aa-bb="ab"></div>
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+ <script>
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+ const box1 = document.getElementById("box");
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+ box1.setAttribute('address','哈尔滨');
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+ console.log(box.getAttribute("address"));
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+ box1.dataset.bb = 'hi';
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+ console.log(box1.dataset.aa);
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+ console.log(box1.dataset.bb);
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+ console.log(box1.dataset.aaBb);
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+ box1.cc = '12';
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+ console.log(box1.cc);
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+ </script>
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+</body>
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+</html>
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zheng