Question

任何人都可以帮我把这个函数写成while循环而不是for循环吗？

function RollAverage(){
  //assumes: outputDiv is available for output
  //results: counts rolls and averages them
  var userNum,countTotal,rollSum;
  userNum=parseFloat(document.getElementById('textBox').value);
  countTotal=0;
  for (rollSum=0; countTotal<userNum; countTotal=countTotal++){
    rollSum=rollSum+(RandomInt(1,6) + RandomInt(1,6));
    countTotal++;
  } 
  document.getElementById('outputDiv').innerHTML='Heres the average ' +(rollSum/countTotal);
}

Answer 1

您是否正在使用RandomInt（）的任何特定库？我用过了 Math.floor（Math.random（1,6）并修改了while循环的代码，如下所示：

function RollAverage(){
var userNum,countTotal,rollSum;
userNum=parseFloat(document.getElementById('textone').value);
countTotal=0;
rollSum=0;
while (countTotal < userNum){
 rollSum = rollSum + (Math.floor(Math.random(1,6) + Math.random(1,6)));
    countTotal++;
 }
document.getElementById('myDivId').innerHTML =(rollSum/countTotal);
}

此处有完整的jsfiddle代码

将for循环更改为while循环，掷骰子的平均值

1 个答案: