鼠标拖拽
来源:互联网 发布:管家婆软件费用 编辑:程序博客网 时间:2024/06/10 09:33
鼠标拖拽实例
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> <style> body{ margin: 0; padding: 0; } div{ position: absolute; top: 200px;/*div的y轴*/ left: 150px;/*div的x轴*/ width: 300px; height: 200px; background-color: gray; } div:hover{ cursor: move; } </style> <script> /* * 分析: * 获取鼠标实时移动的坐标;m_move_x,m_move_y * 鼠标按下时的坐标;m_down_x,m_down_y * div的坐标;dx,dy * 鼠标按下时,鼠标与div的偏移量;md_x,md_y * div的新坐标;ndx,ndy */ var isDown = false;//记录鼠标状态 var move_div ;//要操作的div对象 var m_move_x,m_move_y,m_down_x,m_down_y,dx,dy,md_x,md_y,ndx,ndy; //鼠标按下 function down(){ move_div = document.getElementById("move_div"); isDown = true; //获取鼠标按下时坐标 m_down_x = event.pageX; m_down_y = event.pageY; //获取div坐标 dx = move_div.offsetLeft; dy = move_div.offsetTop; //获取鼠标与div偏移量 md_x = m_down_x - dx; md_y = m_down_y - dy; } //鼠标移动 function move(){ move_div = document.getElementById("move_div"); //实时更新div的坐标 dx = move_div.offsetLeft; dy = move_div.offsetTop; //获取鼠标移动实时坐标 m_move_x = event.pageX; m_move_y = event.pageY; //鼠标按下时移动才触发 if(isDown){ //获取新div坐标,鼠标实时坐标 - 鼠标与div的偏移量 ndx = m_move_x - md_x; ndy = m_move_y - md_y; //把新div坐标值赋给div对象 move_div.style.left = ndx+"px"; move_div.style.top = ndy+"px"; } } //鼠标释放 function up(){ isDown = false; } </script> </head> <body> <div id="move_div" onmousedown="down()" onmouseup="up()" onmousemove="move()"></div> </body></html>
阅读全文
0 0
- Unity3d 实现用鼠标拖拽鼠标
- 鼠标拖拽
- AjaxUI:鼠标拖拽
- 鼠标拖拽
- 鼠标拖拽2
- 鼠标拖拽效果
- 鼠标拖拽效果
- 鼠标拖拽
- 鼠标拖拽事件
- javaScript -鼠标拖拽
- 鼠标拖拽案例
- 鼠标拖拽事件
- 鼠标拖拽
- web--鼠标拖拽
- BT的鼠标拖拽
- 鼠标拖拽排序ListBox
- 鼠标拖拽翻页(分页)
- JS鼠标拖拽效果
- KafKa+Zookeeper+Flume部署脚本
- 指针函数与函数指针
- 百度登录框架
- JavaScript基础—表单验证2
- Unsupported major.minor version 51.0 错误解决方案
- 鼠标拖拽
- 2017.9.27 拥有csdn账号
- 利用JavaScript基础制作小样品
- 事件冒泡
- 用scikit-learn和pandas学习线性回归
- JavaScript基础—复选框的全选和反选
- JEESZ-kafka消息服务平台实现
- 【Codeforces587E】Duff as a Queen
- Springmvc+mybatis+shiro+Dubbo+ZooKeeper+Redis+KafKa j2ee分布式架构