PowerPoint幻灯片怎么让鼠标划过图片就放大

1.PPT怎么让鼠标划过图片就放大

//以下代码需要jquery.js $.fn.floatWith = function(obj,idx){ idx = typeof(idx)!='number' || !idx ? 0 : idx; var elem = $(obj),offset = elem.offset(),_top = offset.top,_left =offset.left,width = elem.outerWidth(),height=elem.outerHeight(); var floatWidth = this.outerWidth(), floatHeight = this.outerHeight(), cssPos = null; switch(idx){ case 0: cssPos = {top:_top+height,left:_left}; break; case 1: cssPos = {top:_top+height,left:_left+width}; break; case 2: cssPos = {top:_top,left:_left+width}; break; case 3: cssPos = {top:_top-floatHeight,left:_left+width}; break; case 4: cssPos = {top:_top-floatHeight,left:_left}; break; case 5: cssPos = {top:_top-floatHeight,left:_left-floatWidth}; break; case 6: cssPos = {top:_top,left:_left-floatWidth}; break; case 7: cssPos = {top:_top+height,left:_left-floatWidth}; break; default:cssPos = {top:_top+height,left:_left}; break; } this.eq(0).css({'position':'absolute'}).css(cssPos).hide().show(200); return this; };。