文件为已经编译的测试文件，资源里写出的文件跟a代码完全一样，只是标签标题不同以示区别升级效果，因为代码完全相同，所以可以无限次循环升级自身。-Document has been compiled test files, resources in the file with a code to write exactly the same, but the title tag to distinguish different upgrade results, because the code is