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<p id="demo">单击按钮显示修改时,分,秒来后的时间</p>
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<button onclick="myFunction()">点我</button>
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<script>
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function myFunction() {
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var d = new Date();
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d.setHours(15, 35, 1);
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var x = document.getElementById("demo");
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x.innerHTML = d;
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}
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</script>