场景:点击按钮,运行了一个比较耗时的操作,那么界面会卡死;出现无响应文字
处理方法
https://guo-pu.blog.csdn.net/article/details/86707216?utm_medium=distribute.pc_relevant_bbs_down.none-task-blog-baidujs-2.nonecase&depth_1-utm_source=distribute.pc_relevant_bbs_down.none-task-blog-baidujs-2.nonecase