超级 详细，超级超级清晰的读取文件的源码、截图，效果截图，心得体会与说明，强烈推荐啊~~这是本人学习成果呢-The source of the super-super-detailed, super super clear to read the file, screenshots, effects shots, feelings and experiences and descr iptions, it is strongly recommended ah ~ ~ This is my learning outcomes.