var rollBackName = filename;
var pos = -1;
if(filename.lastIndexOf("\\") != -1) {
pos = filename.lastIndexOf("\\");
}
if(filename.lastIndexOf("/") != -1) {
pos = filename.lastIndexOf("/");
}
if(pos != -1) {
rollBackName = filename.substring(pos+1);
}
linux系统上传文件获取路径失败
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