Javascript If语句不显示结果

所以代码的其余部分也可以按照我的需要工作。下面列出了唯一不起作用的部分。我试图实现的是，如果在程序启动后输入

SENTINEL

，

numResults

和

floatResults

将接收以下值。我在哪里没有正确编码，所以语句不起作用？谢谢你的帮助

如果声明给了我问题

// gives value if only the SENTINEL is entered once program is initiated
  if (number == SENTINEL && numValues == 0 && floatValues == 0 ) {
    numResults = document.getElementById("numbers").innerHTML = " No values were entered."
    floatResults = document.getElementById("floating").innerHTML = " No values were entered."
  }

<script>

        function examineNumbers() {

const SENTINEL = -1;

let number = 0;
let type;
let numValues = 0;
let numAverage = 0;
let floatValues = 0;
let numTotal = 0;
let floatTotal = 0;
let list = document.getElementById("list");
let numbers = document.getElementById("numbers");
let floating = document.getElementById("floating");


// while loop to only allow numbers greater than zero to be inputted
while (number != SENTINEL) {
  number = prompt("Enter a number. Type " + SENTINEL + " to stop.");
  if (number == -1) {
    break;
  }
  // deterrmines if a number is even
  if (number % 2 == 0) {
    type = " is an even value";
    numTotal += parseInt(number);
    numValues++;
  }

  // determines if a number is odd
  else if (Math.abs(number % 2) == 1) {
    type = " is an odd value";
    numTotal += parseInt(number);
    numValues++;
  }

  // gives a floating point type if above two aren't met
  else {
    type = " is a floating point value.";
    floatTotal += parseFloat(number);
    numTotal += parseFloat(number);
    numValues++;
    floatValues++;
  }

  let numResults;
  let floatResults;
  // averages non floating numbers
  numAverage = numTotal / numValues;
  numResults = document.getElementById("numbers").innerHTML = " The total is " + numTotal.toFixed(2) +
    " and the average is " + numAverage.toFixed(2) + ".";

   // gives value if only the SENTINEL is entered once program is initiated
  if (number == SENTINEL && numValues == 0 && floatValues == 0 ) {
    numResults = document.getElementById("numbers").innerHTML = " No values were entered."
    floatResults = document.getElementById("floating").innerHTML = " No values were entered."
  }

  // averages floating point numbers
  floatAverage = floatTotal / floatValues;
  floatResults = document.getElementById("floating").innerHTML = "The sum of just the floating point values is " + floatTotal.toFixed(2) +
    " with the average of " + floatAverage.toFixed(2) + ".";


  // gives value if no floating numbers are entered
  if (floatValues == 0 ) {
    floatResults = document.getElementById("floating").innerHTML = "No floating-pont values were entered."
  }


  let li = "";
  //only add number and its status to list when number not equal to SENTINEL
  if (number !== SENTINEL) {
    li = document.createElement("li");
    li.innerHTML = number + type;
    list.appendChild(li);

    // displays information for both non floating numbers and floating numbers
    numbers.innerHTML = numResults;
    floating.innerHTML = floatResults;
  }
}
}
    </script>

我的代码

// gives value if only the SENTINEL is entered once program is initiated
  if (number == SENTINEL && numValues == 0 && floatValues == 0 ) {
    numResults = document.getElementById("numbers").innerHTML = " No values were entered."
    floatResults = document.getElementById("floating").innerHTML = " No values were entered."
  }

<script>

        function examineNumbers() {

const SENTINEL = -1;

let number = 0;
let type;
let numValues = 0;
let numAverage = 0;
let floatValues = 0;
let numTotal = 0;
let floatTotal = 0;
let list = document.getElementById("list");
let numbers = document.getElementById("numbers");
let floating = document.getElementById("floating");


// while loop to only allow numbers greater than zero to be inputted
while (number != SENTINEL) {
  number = prompt("Enter a number. Type " + SENTINEL + " to stop.");
  if (number == -1) {
    break;
  }
  // deterrmines if a number is even
  if (number % 2 == 0) {
    type = " is an even value";
    numTotal += parseInt(number);
    numValues++;
  }

  // determines if a number is odd
  else if (Math.abs(number % 2) == 1) {
    type = " is an odd value";
    numTotal += parseInt(number);
    numValues++;
  }

  // gives a floating point type if above two aren't met
  else {
    type = " is a floating point value.";
    floatTotal += parseFloat(number);
    numTotal += parseFloat(number);
    numValues++;
    floatValues++;
  }

  let numResults;
  let floatResults;
  // averages non floating numbers
  numAverage = numTotal / numValues;
  numResults = document.getElementById("numbers").innerHTML = " The total is " + numTotal.toFixed(2) +
    " and the average is " + numAverage.toFixed(2) + ".";

   // gives value if only the SENTINEL is entered once program is initiated
  if (number == SENTINEL && numValues == 0 && floatValues == 0 ) {
    numResults = document.getElementById("numbers").innerHTML = " No values were entered."
    floatResults = document.getElementById("floating").innerHTML = " No values were entered."
  }

  // averages floating point numbers
  floatAverage = floatTotal / floatValues;
  floatResults = document.getElementById("floating").innerHTML = "The sum of just the floating point values is " + floatTotal.toFixed(2) +
    " with the average of " + floatAverage.toFixed(2) + ".";


  // gives value if no floating numbers are entered
  if (floatValues == 0 ) {
    floatResults = document.getElementById("floating").innerHTML = "No floating-pont values were entered."
  }


  let li = "";
  //only add number and its status to list when number not equal to SENTINEL
  if (number !== SENTINEL) {
    li = document.createElement("li");
    li.innerHTML = number + type;
    list.appendChild(li);

    // displays information for both non floating numbers and floating numbers
    numbers.innerHTML = numResults;
    floating.innerHTML = floatResults;
  }
}
}
    </script>

函数检查枚举数（）{
常数哨兵=-1；
设数=0；
let型；
设numValues=0；
设numAverage=0；
设floatvalue=0；
设numTotal=0；
设floatTotal=0；
let list=document.getElementById（“list”）；
让number=document.getElementById（“number”）；
让floating=document.getElementById（“floating”）；
//而循环仅允许输入大于零的数字
while（数字！=哨兵）{
数字=提示（“输入数字。键入“+SENTINEL+”停止”）；
如果（数字==-1）{
打破
}
//确定数字是否为偶数
如果（数字%2==0）{
type=“是偶数值”；
numTotal+=parseInt（数字）；
numValues++；
}
//确定数字是否为奇数
else if（数学绝对值（数字%2）==1）{
type=“是奇数”；
numTotal+=parseInt（数字）；
numValues++；
}
//如果不满足上述两个条件，则提供浮点类型
否则{
type=“是一个浮点值。”；
floatTotal+=parseFloat（数字）；
numTotal+=parseFloat（数字）；
numValues++；
浮点值++；
}
让numResults；
让我们看看结果；
//平均非浮点数
numAverage=numTotal/numvalue；
numResults=document.getElementById（“数字”）.innerHTML=“总数为”+numTotal.toFixed（2）+
平均值为“+numerage.toFixed（2）+”；
//如果程序启动后仅输入SENTINEL，则给出值
if（number==SENTINEL&&numValues==0&&floatValues==0）{
numResults=document.getElementById（“数字”）.innerHTML=“未输入任何值。”
floatResults=document.getElementById（“floating”）.innerHTML=“未输入任何值。”
}
//平均浮点数
floatAverage=floatTotal/floatValue；
floatResults=document.getElementById（“floating”）.innerHTML=“仅浮点值之和为”+floatTotal.toFixed（2）+
“平均值为“+floatAverage.toFixed（2）+”；
//如果未输入浮点数，则给出值
如果（浮点值==0）{
floatResults=document.getElementById（“floating”）.innerHTML=“未输入任何浮点值。”
}
让李=”；
//仅当编号不等于SENTINEL时，才将编号及其状态添加到列表中
如果（数字！==哨兵）{
li=document.createElement（“li”）；
li.innerHTML=编号+类型；
表1.儿童（李）；
//显示非浮点数和浮点数的信息
numbers.innerHTML=numResults；
floating.innerHTML=floatingresults；
}
}
}

数字检测工具
单击此处输入数字
号码表

如果像下面这样移动IF语句，则会破坏IF语句，因此它永远不会结束

number = prompt("Enter a number. Type " + SENTINEL + " to stop.");
  // gives value if only the SENTINEL is entered once program is initiated
  if (number == SENTINEL && numValues == 0 && floatValues == 0 ) {
    document.getElementById("numbers").innerHTML = " No values were entered."
    document.getElementById("floating").innerHTML = " No values were entered."
    while (list.children.length>0) {
      list.lastChild.remove()
    }
  }
  if (number == -1) {
    break;
  }

它应该会起作用，或者你可以合并声明

number = prompt("Enter a number. Type " + SENTINEL + " to stop.");
  // gives value if only the SENTINEL is entered once program is initiated
  if (number == -1) {
    if (numValues == 0 && floatValues == 0) {
      document.getElementById("numbers").innerHTML = " No values were entered."
      document.getElementById("floating").innerHTML = " No values 
were entered."
      while (list.children.length>0) {
        list.lastChild.remove()
      }
    }
    break;
  }

---

如果您像下面这样移动IF语句，您将破坏IF语句，因此它永远不会结束

number = prompt("Enter a number. Type " + SENTINEL + " to stop.");
  // gives value if only the SENTINEL is entered once program is initiated
  if (number == SENTINEL && numValues == 0 && floatValues == 0 ) {
    document.getElementById("numbers").innerHTML = " No values were entered."
    document.getElementById("floating").innerHTML = " No values were entered."
    while (list.children.length>0) {
      list.lastChild.remove()
    }
  }
  if (number == -1) {
    break;
  }

它应该会起作用，或者你可以合并声明

number = prompt("Enter a number. Type " + SENTINEL + " to stop.");
  // gives value if only the SENTINEL is entered once program is initiated
  if (number == -1) {
    if (numValues == 0 && floatValues == 0) {
      document.getElementById("numbers").innerHTML = " No values were entered."
      document.getElementById("floating").innerHTML = " No values 
were entered."
      while (list.children.length>0) {
        list.lastChild.remove()
      }
    }
    break;
  }

---

要将值设置为numResults、floatResults，则应首先定义每个变量。为了将number变量放入提示符，我将if条件置于number提示符下。看来一切都很好

//如果程序启动后仅输入SENTINEL，则给出值
if（number==SENTINEL&&numValues==0&&floatValues==0）{
numResults=document.getElementById（“数字”）.innerHTML=“未输入任何值。”
floatResults=document.getElementById（“floating”）.innerHTML=“未输入任何值。”
}
函数检查枚举数（）{
常数哨兵=-1；
设数=0；
let型；
设numValues=0；
设numAverage=0；
设floatvalue=0；
设numTotal=0；
设floatTotal=0；
let list=document.getElementById（“list”）；
让number=document.getElementById（“number”）；
让floating=document.getElementById（“floating”）；
//而循环仅允许输入大于零的数字
while（数字！=哨兵）{
数字=提示（“输入数字。键入“+SENTINEL+”停止”）；
if（number==SENTINEL&&numValues==0&&floatValues==0）{
floating.innerHTML=“未输入任何值。”
numbers.innerHTML=“未输入任何值。”
打破
}
//确定数字是否为偶数
如果（数字%2==0）{
type=“是偶数值”；
numTotal+=parseInt（数字）；
numValues++；
}
//确定数字是否为奇数
else if（数学绝对值（数字%2）==1）{
type=“是奇数”；
numTotal+=parseInt（数字）；
numValues++；
}
//如果不满足上述两个条件，则提供浮点类型
否则{
type=“是一个浮点值。”；
floatTotal+=parseFloat（数字）；
numTotal+=parseFloat（数字）；
numValues++；
浮点值++；
}
让numResults；
让我们看看结果；
//平均非浮点数
numAverage=numTotal/numvalue；
numResults=document.getElementById（“数字”）.innerHTML=“总数为”+numTotal.toFixed（2）+
平均值为“+numerage.toFixed（2）+”；
//如果程序启动后仅输入SENTINEL，则给出值
if（number==SENTINEL&&numValues==0&&floatValues==0）{
numResults=document.getElementById（“数字”）.innerHTML=“未输入任何值。”
floatResults=document.getElementById（“floating”）.innerHTML=“未输入任何值。”
}
//平均浮点数
floatAverage=floatTotal/floatValue；
floatResults=document.getEleme