函數返回一個浮點, 偽隨機數在範圍從0到小於1

函數返回一個浮點, 偽隨機數在範圍從0到小於1

<style>#Random {font-size:20px;width:100%} #Random td{font-size:20px;padding:6px} </style> <table id="Random" border="1" ><tbody><tr><th width="55%">函數</th><th width="20%">範圍</th><th width="25%">隨機數</th><tr><td> Math.random()</td><td>random 0 to 1</td><td id="Ra1">第一行 欄位 2 <tr><td> Math.floor(Math.random()*10)</td><td>random 0 to 9</td><td id="Ra2"><tr><td> Math.floor(Math.random()*10+1)</td><td> random 1 to 10</td><td id="Ra3"><tr><td> Math.floor(Math.random()*100)</td><td> random 0 to 99</td><td id="Ra4"><tr><td> Math.floor(Math.random()*100+1)</td><td> random 1 to 100</td><td id="Ra5"><tr><td> var min=20, max=80<br> Math.floor(Math.random() * (max - min + 1) ) + min; </td><td> random 20 to 80</td><td id="Ra6"> </td></tr></tbody></table> <script>var qid ; function Ram(){ clearTimeout ( qid );Math.floor Ra1.innerHTML = Math.random(); Ra2.innerHTML = Math.floor(Math.random()*10); Ra3.innerHTML = Math.floor(Math.random()*10+1); Ra4.innerHTML = Math.floor(Math.random()*100); Ra5.innerHTML = Math.floor(Math.random()*100+1); var min=20, max=80 ; Ra6.innerHTML=Math.floor(Math.random() * (max - min + 1) ) + min; qid = setTimeout ( Ram, 1000 ); } Ram(); </script>

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<style>ss {float:left;font-size:30px;margin-right:11px} gg {font-size:20px;height:30px;width:30px;;border: 2px solid black; border-radius:30px; display: flex;justify-content: center;align-items: center;float:left;margin-right:11px} </style> <ss> 六合彩 </ss> <div id="DP"></div><button type="button" onclick="RamA()">下一組</button> <script>function RamA(){ var Six = ""; var Tt = 0 for(var i = 0 ;i < 7 ;i++){ Tt = Math.floor(Math.random()*49+1); if(Six.substr(Tt) == 0){Six += Tt+","} else{i--} } var array = Six.split(","); var sp = array[6] ; delete array[6]; array.sort(function(a, b){return a - b}); var Txt = " <gg>" + array[1] + "</gg><gg>" + array[2] ; Txt += "</gg><gg>" + array[3] + "</gg><gg>"+ array[4] ; Txt += "</gg><gg>" + array[5] + "</gg><gg>" + array[6] + "</gg>"; Txt += "<ss> + </ss> <gg>" + sp + "</gg>"; DP.innerHTML = Txt ; } RamA(); </script>

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#html Math.random() 隨機數#script Math.random() 隨機數#隨機 六合彩