Question

我是jQuery新手如果我有这样的列表：

add one
add two
add three

如何在容器#calculate中计算这些值。何时

添加一个

单击

时，应将1加到容器中

添加两个

单击它应该在容器中显示3，因此应该可以无休止地单击它们，并且每次将其乘以您要添加的数字

Answer 1

使用全局变量，该变量初始化为0。使用[void][System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms") Function Pick-Date { $Cal = New-Object System.Windows.Forms.MonthCalendar $Cal.ShowWeekNumbers = $true $Cal.MaxSelectionCount = 1 $Cal.Dock = 'Fill' $Form = New-Object Windows.Forms.Form $Form.text = "Colocar fecha que desea enviar. Y presiona Enter" $Form.Size = New-Object Drawing.Size @(656,620) $btnSelect = New-Object System.Windows.Forms.Button $btnSelect.Size = "100,100" $btnSelect.add_Click({ $Form.close() }) $btnSelect.Location = New-Object System.Drawing.Point(530,480) $btnSelect.Text="ENTER" $Form.Controls.Add($btnSelect ) $Form.AcceptButton = $btnSelect $Form.Controls.Add($Cal) $Form.Add_Shown({$Form.Activate()}) [void]$Form.ShowDialog() return (Get-Date($Cal.SelectionStart)) } $fecha = Pick-Date $archivos=Get-ChildItem "$root\UNB\FINAL_TEXTO\" -Filter *.txt | Where-Object {$_.CreationTime.Date -EQ $fecha}调用所需的函数，在这种情况下，Error loading preview并将计数器值设置为结果div。

async function uploadImageAsync(itemImage, passedParameter, ItemName, ItemDesc, ItemPrice, ItemWeight) {



     const response = await fetch(itemImage);
      const blob = await response.blob();
       console.log("uri of the elements ius", blob)

      var storageRef = firebase.storage().ref();
      var file = blob

     var metadata = {
        contentType: 'image/jpeg',
      };
      const timeStamp = Date.now();
      var uploadTask = storageRef.child('CategoryDescription' + "/" + `${passedParameter}` + "/" + `${ItemName}`).put(file, metadata);

_pickImage = async () => {
 const { CAMERA, CAMERA_ROLL } = Permissions;
 const permissions = {
  [CAMERA]: await Permissions.askAsync(CAMERA),
  [CAMERA_ROLL]: await Permissions.askAsync(CAMERA_ROLL),
 };

 if (permissions[CAMERA].status === 'granted' && permissions[CAMERA_ROLL].status === 'granted') {
  let result = await ImagePicker.launchImageLibraryAsync({
 allowsEditing: false,
 aspect:[4,3],
 quality: 0.5,
  });
  // console.log(result);

  if (!result.cancelled) {
 this.setState({ itemImage: result.uri });
  }
 }

Answer 2

var TotalAmount = 0;

function btnClick(Param) { 
  TotalAmount += Number(Param);
  console.log(TotalAmount);
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button id="btnOne" onclick="btnClick(1)">Add one</button>
<button id="btnTwo" onclick="btnClick(2)">Add two</button>
<button id="btnThree" onclick="btnClick(3)">Add three</button>

Answer 3

尝试一下

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div id="result">0</div>
<button value="1" onClick="sum(this.value)">Add One</button>
<button value="2" onClick="sum(this.value)">Add Two</button>
<button value="3" onClick="sum(this.value)">Add Three</button>
<script>
var total = 0;
function sum(num){
  total += parseInt(num);
  $("#result").html(total);
}
</script>

Answer 4

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
 <div>
   Result: <span id="result"></span><br />
   Number of clicks: <span id="clickNumber"></span><br />
 </div>
 <div>
  <button onclick="addFunction(1)">
   Add One
  </button>
  <button onclick="addFunction(2)">
   Add Two
  </button>
 </div>

 <script>
  let result = 0;
  let clickNumber = 0
  function addFunction(n){
   result += n;
   clickNumber++;
   $("#result").text(result);
   $("#clickNumber").text(clickNumber);
  }
</script>

Answer 5

var total = 0;

function add(num){
 if(total==0){
   total += num;
  $("#res").html(total);
  }else{
  total *= num;
  $("#res").html(total);
   }
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="res">0</div>
<button onClick="add(1)">Add One</button>
<button onClick="add(2)">Add Two</button>
<button onClick="add(3)">Add Three</button>

Answer 6

您可以绑定单击事件以获取按钮文本，如下所示

$("button").click(function(){
    nummber = nummber +( +this.text());
});

您无需在html中附加点击列表器，就可以在按钮中添加类以仅在javascript中找到计算器按钮

计算点击次数

6 个答案: