自学java day01 首次运行程序遇到一个坑：Error: could not open `D:develop_toolersjavajre1.8.0_202libamd64jvm.cfg' 通过看了一篇博主的文章https://blog.csdn.net/qq_34950682/article/details/94339981?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7EHighlightScore-1.queryctrv2&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7EHighlightScore-1.queryctrv2 才知道要置顶变量！遇到相同问题的同学可以看看这个。
