Question

我希望通过点击操作来禁用第五次点击的按钮，但是我无法在这是javascript ...

var currentTurn = 1;

function taketurn(){
  currentTurn++;
  document.getElementById("turn").innerHTML = currentTurn;
  threeturns(currentTurn);
}
function threeturns(now) {
  if(now > 3){
    document.getElementById("livedead").innerHTML = "disabled";
  }
}

然后html

<div class="container">
<h1>turn <span id="turn">1</span></h1>
    <button onclick="taketurn()" type="button" class="btn btn-lg btn-info" <span id="livedead"></span> />  next</button>
    <button onclick="taketurn()" type="button" class="btn btn-lg btn-info" disabled>  next</button>
</div>

Answer 1

您的代码有些变化。需要对HTML进行一些更正，以使livedead跨度未在开始<button>标记内定义。

此外，通过在按钮disabled对象上设置Node字段来禁用javascript按钮（即，不通过将innerHTML设置为Disabled来完成）。

我建议对您的代码进行一些更改-关键之一是使用MouseEvent对象。

在您的情况下，这将简化禁用用户单击的按钮的操作。为了说明MouseEvent对象的用法，请考虑以下代码：

var currentTurn = 1;

// add a parameter to function to give us access to the event
// for this click interaction
function taketurn(event){
	
  // if click count is 5 or more, then disable this button
  if(currentTurn >= 5) {
  
    // we access the button via the event parameter that we 
    // passed in. The currentTarget represents the button, so
    // we can set disabled on the button to disable it.
    event.currentTarget.disabled = 'disabled'
  }
   
  currentTurn ++;
  
  document.getElementById("turn").innerHTML = currentTurn;
}

<div class="container">
<h1>turn <span id="turn">1</span></h1>
    <!-- pass event defined for the click interaction, to taketurn() -->
    <button onclick="taketurn(event)" type="button" class="btn btn-lg btn-info" id="livedead">  next</button>
    <button onclick="taketurn()" type="button" class="btn btn-lg btn-info" disabled>  next</button>
</div>

javascript禁用按钮

1 个答案: