//获取文件后缀 function getType(file){ var filename=file; var index1=filename.lastIndexOf("."); var index2=filename.length;
var type=filename.substring(index1,index2); return type; }
//获取文件后缀 function getType(file){ var filename=file; var index1=filename.lastIndexOf("."); var index2=filename.length;
var type=filename.substring(index1,index2); return type; }