html 实现登录时划块验证
时间: 2023-10-05 09:07:29 浏览: 36
要实现登录时的滑块验证,你可以使用HTML、CSS和JavaScript来完成。下面是一个简单的示例:
HTML代码:
```html
<div id="slider">
<div id="slider-block"></div>
</div>
<button onclick="verify()">验证</button>
```
CSS代码:
```css
#slider {
width: 300px;
height: 40px;
background-color: #f1f1f1;
position: relative;
}
#slider-block {
width: 100px;
height: 40px;
background-color: #337ab7;
position: absolute;
cursor: pointer;
}
button {
margin-top: 10px;
}
```
JavaScript代码:
```javascript
var slider = document.getElementById("slider");
var block = document.getElementById("slider-block");
var isVerified = false;
block.onmousedown = function(event) {
var shiftX = event.clientX - block.getBoundingClientRect().left;
document.onmousemove = function(event) {
var newLeft = event.clientX - shiftX - slider.getBoundingClientRect().left;
if (newLeft < 0) {
newLeft = 0;
}
var rightEdge = slider.offsetWidth - block.offsetWidth;
if (newLeft > rightEdge) {
newLeft = rightEdge;
isVerified = true;
}
block.style.left = newLeft + "px";
};
document.onmouseup = function() {
document.onmousemove = document.onmouseup = null;
if (isVerified) {
alert("验证通过!");
// 在这里可以执行登录操作
} else {
alert("请完成滑块验证!");
}
};
return false;
};
function verify() {
if (isVerified) {
alert("已通过验证!");
} else {
alert("请完成滑块验证!");
}
}
```
这个示例通过创建一个滑块元素和一个验证按钮来实现滑块验证功能。用户需要拖动滑块元素到最右边来完成验证。在`verify()`函数中,可以根据`isVerified`变量的状态来执行相应的操作,比如执行登录操作。
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)