jQuery实现鼠标拖动div改变位置、大小的操作

本篇内容主要讲解“Jquery实现鼠标拖动div改变位置、大小的操作”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“jQuery实现鼠标拖动div改变位置、大小的操作”吧!

       实现类似windows窗体的效果，在中间拖动改变div位置，在边缘拖动改变div大小，鼠标在相应的位置改变成相应的形状
效果如图: （截图没显示鼠标）

代码如下：

$(".test1").mousemove(function(e){                $(".test1").unbind("mousedown");                $(".test1").CSS("cursor","default");                //$("span > b").text(parseInt($("div").width()));                var left = $(".test1").offset().left;                var top = $(".test1").offset().top;                // 如果鼠标在中间                if(e.clientX - left > 10 && e.clientX-left < parseInt($(".test1").width()) - 10                 && e.clientY - top  > 10 && e.clientY-top  < parseInt($(".test1").height()) - 10) {                    $(".test1").css("cursor","move");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var y = e.pageY - $(".test1").offset().top;                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"left":e.pageX - x, "top":e.pageY - y});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                                //如果鼠标在左上角                if(e.clientX - left < 10 && e.clientY - top < 10) {                    $(".test1").css("cursor","nw-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var y = e.pageY - $(".test1").offset().top;                        var h = e.pageY + parseInt($(".test1").css("height"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"height":h - e.pageY, "top":e.pageY - y});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var w = e.pageX + parseInt($(".test1").css("width"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"width":w - e.pageX, "left":e.pageX - x});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                //如果鼠标在上                if(e.clientY - top < 10 && e.clientX - left > 10 && e.clientX-left < parseInt($(".test1").width()) - 10) {                    $(".test1").css("cursor","n-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var y = e.pageY - $(".test1").offset().top;                        var h = e.pageY + parseInt($(".test1").css("height"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"height":h - e.pageY, "top":e.pageY - y});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                //如果鼠标在右上角                if(e.clientY - top < 10 && e.clientX-left > parseInt($(".test1").width()) - 10) {                    $(".test1").css("cursor","ne-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var y = e.pageY - $(".test1").offset().top;                        var h = e.pageY + parseInt($(".test1").css("height"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"height":h - e.pageY, "top":e.pageY - y});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var w = e.pageX - parseInt($(".test1").css("width"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"width":e.pageX - w});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                //如果鼠标在右                if(e.clientX-left > parseInt($(".test1").width()) - 10 && e.clientY - top > 10 && e.clientY-top  < parseInt($(".test1").height()) - 10) {                    $(".test1").css("cursor","e-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var w = e.pageX - parseInt($(".test1").css("width"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"width":e.pageX - w});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                //如果鼠标在右下                if(e.clientX-left > parseInt($(".test1").width()) - 10 && e.clientY-top  > parseInt($(".test1").height()) - 10) {                    $(".test1").css("cursor","se-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var w = e.pageX - parseInt($(".test1").css("width"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"width":e.pageX - w});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var y = e.pageY - $(".test1").offset().top;                        var h = e.pageY - parseInt($(".test1").css("height"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"height":e.pageY - h});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                //如果鼠标在下                if(e.clientY-top  > parseInt($(".test1").height()) - 10 && e.clientX - left > 10 && e.clientX-left < parseInt($(".test1").width()) - 10) {                    $(".test1").css("cursor","s-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var y = e.pageY - $(".test1").offset().top;                        var h = e.pageY - parseInt($(".test1").css("height"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"height":e.pageY - h});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                //如果鼠标在左下                if(e.clientY-top  > parseInt($(".test1").height()) - 10 && e.clientX - left < 10) {                    $(".test1").css("cursor","sw-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var w = e.pageX + parseInt($(".test1").css("width"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"width":w - e.pageX, "left":e.pageX - x});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var y = e.pageY - $(".test1").offset().top;                        var h = e.pageY - parseInt($(".test1").css("height"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"height":e.pageY - h});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }                                //如果鼠标在左                if(e.clientX - left < 10 && e.clientY - top > 10 && e.clientY-top < parseInt($(".test1").height()) - 10) {                    $(".test1").css("cursor","w-resize");                    $(".test1").mousedown(function(e) {                        var ismove = true;                        var x = e.pageX - $(".test1").offset().left;                        var w = e.pageX + parseInt($(".test1").css("width"));                        $(document).mousemove(function(e) {                            if(ismove) {                                $(".test1").css({"width":w - e.pageX, "left":e.pageX - x});                            }                        }).mouseup(function() {                            ismove = false;                        });                    });                }            });

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