jquery+html5实现图片上传并裁切功能，上传图片前可预览裁切效果，显示裁切框，应用jquery.Jcrop.min.js实现，兼容性方面，适用浏览器：FireFox、Chrome、Opera. 不支持IE8、360、Safari、傲游、搜狗、世界之窗。本示例由网上的一个jquery html5图片裁切上传修改所得，原代码中缺少上传部分，只实现了图片预览和裁切。-Jquery+html5 to achieve image upload and cutting function, upload pictures can be cut preview and display the crop box, realize the application jquery.Jcrop.min.js and compatibility for browsers: Firefox, chrome, opera does not support IE8, 360, Safari, Maxthon, Sogou, window of the world. This example is a HTML5 jQuery images　the Internet to cut and upload the revised income, the original code in the lack of upload part, only to achieve a picture preview and cut.