代码编辑器:
x
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<p id="demo">单击按钮,不同数值上升到最近的整数</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 a=Math.ceil(0.60);
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var b=Math.ceil(0.40);
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var c=Math.ceil(5);
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var d=Math.ceil(5.1);
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var e=Math.ceil(-5.1);
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var f=Math.ceil(-5.9);
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var x=document.getElementById("demo");
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x.innerHTML=a + "<br>" + b + "<br>" + c + "<br>" + d + "<br>" + e + "<br>" + f;
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}
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</script>
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