可点击按钮移动另一个选项卡

Question

我正在我的页面中创建标签，我的参考是这个 https://www.w3schools.com/howto/howto_js_tab_header.asp。它工作得很好，直到我尝试在选项卡中创建一个按钮，该按钮在单击时指向另一个选项卡。我试图将东京选项卡的按钮添加到伦敦选项卡中。它指向该选项卡，但不幸的是，指向的选项卡按钮背景没有改变，我知道为什么它没有改变，但我没有解决方案。非常感谢您的帮助

function openCity(cityName,elmnt,color) {
  var i, tabcontent, tablinks;
  tabcontent = document.getElementsByClassName("tabcontent");
  for (i = 0; i < tabcontent.length; i++) {
    tabcontent[i].style.display = "none";
  }
  tablinks = document.getElementsByClassName("tablink");
  for (i = 0; i < tablinks.length; i++) {
    tablinks[i].style.backgroundColor = "";
  }
  document.getElementById(cityName).style.display = "block";
  elmnt.style.backgroundColor = color;

}
// Get the element with id="defaultOpen" and click on it
document.getElementById("defaultOpen").click();

body {font-family: "Lato", sans-serif;}

.tablink {
  background-color: #555;
  color: white;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  font-size: 17px;
  width: 25%;
}

.tablink:hover {
  background-color: #777;
}

/* Style the tab content */
.tabcontent {
  color: white;
  display: none;
  padding: 50px;
  text-align: center;
}

#London {background-color:red;}
#Paris {background-color:green;}
#Tokyo {background-color:blue;}
#Oslo {background-color:orange;}

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">

</head>
<body>

<p>Click on the buttons inside the tabbed menu:</p>

<div id="London" class="tabcontent">
  <h1>London</h1>
  <p>London is the capital city of England.</p>
  <button class="tablink" onclick="openCity('Tokyo', this, 'blue')">Tokyo</button>
</div>

<div id="Paris" class="tabcontent">
  <h1>Paris</h1>
  <p>Paris is the capital of France.</p> 
</div>

<div id="Tokyo" class="tabcontent">
  <h1>Tokyo</h1>
  <p>Tokyo is the capital of Japan.</p>
</div>

<div id="Oslo" class="tabcontent">
  <h1>Oslo</h1>
  <p>Oslo is the capital of Norway.</p>
</div>

<button class="tablink" onclick="openCity('London', this, 'red')" id="defaultOpen">London</button>
<button class="tablink" onclick="openCity('Paris', this, 'green')">Paris</button>
<button class="tablink" onclick="openCity('Tokyo', this, 'blue')">Tokyo</button>
<button class="tablink" onclick="openCity('Oslo', this, 'orange')">Oslo</button>

   
</body>
</html>

Answer 1

该代码运行良好，因为您的函数会更改您单击的按钮的颜色，因此我为内部按钮创建了另一个函数。示例：

function openCity(cityName,elmnt,color) {
  var i, tabcontent, tablinks;
  tabcontent = document.getElementsByClassName("tabcontent");
  for (i = 0; i < tabcontent.length; i++) {
    tabcontent[i].style.display = "none";
  }
  tablinks = document.getElementsByClassName("tablink");
  for (i = 0; i < tablinks.length; i++) {
    tablinks[i].style.backgroundColor = "";
  }
  document.getElementById(cityName).style.display = "block";
  elmnt.style.backgroundColor = color;

}
// Get the element with id="defaultOpen" and click on it
document.getElementById("defaultOpen").click();

function openCityInt(el){
    const x = document.getElementsByClassName(el);
    x[0].click();
}

body {font-family: "Lato", sans-serif;}

.tablink {
  background-color: #555;
  color: white;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  font-size: 17px;
  width: 25%;
}

.tablink:hover {
  background-color: #777;
}

/* Style the tab content */
.tabcontent {
  color: white;
  display: none;
  padding: 50px;
  text-align: center;
}

#London {background-color:red;}
#Paris {background-color:green;}
#Tokyo {background-color:blue;}
#Oslo {background-color:orange;}

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">

</head>
<body>

<p>Click on the buttons inside the tabbed menu:</p>

<div id="London" class="tabcontent">
  <h1>London</h1>
  <p>London is the capital city of England.</p>
  <button class="tablink" onclick="openCityInt('tokyo')">Tokyo</button>
</div>

<div id="Paris" class="tabcontent">
  <h1>Paris</h1>
  <p>Paris is the capital of France.</p> 
</div>

<div id="Tokyo" class="tabcontent">
  <h1>Tokyo</h1>
  <p>Tokyo is the capital of Japan.</p>
</div>

<div id="Oslo" class="tabcontent">
  <h1>Oslo</h1>
  <p>Oslo is the capital of Norway.</p>
</div>

<button class="tablink london" onclick="openCity('London', this, 'red')" id="defaultOpen">London</button>
<button class="tablink paris" onclick="openCity('Paris', this, 'green')">Paris</button>
<button class="tablink tokyo" onclick="openCity('Tokyo', this, 'blue')">Tokyo</button>
<button class="tablink oslo" onclick="openCity('Oslo', this, 'orange')">Oslo</button>

   
</body>
</html>

可点击按钮移动另一个选项卡

Clickable button to move another tab

html

jquery

tabs