asyncio 协程
懒得抄了，转载这个博主的文章，写的很详细
（1）https://blog.csdn.net/qq_27825451/article/details/85226239
（2）https://blog.csdn.net/qq_27825451/article/details/85234610
（3）https://blog.csdn.net/qq_27825451/article/details/85244237
（4）https://blog.csdn.net/qq_27825451/article/details/102457246?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158634058019725247650060%2522%252C%2522scm%2522%253A%252220140713.130056874..%2522%257D&request_id=158634058019725247650060&biz_id=0&utm_source=distribute.pc_search_result.none-task-blog-blog_SOOPENSEARCH-12
（5）https://blog.csdn.net/qq_27825451/article/details/86218230
（6）https://blog.csdn.net/qq_27825451/article/details/86292513
装饰器 （有很多篇）
上
https://blog.csdn.net/qq_27825451/article/details/84396970?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158634070419724811826133%2522%252C%2522scm%2522%253A%252220140713.130056874..%2522%257D&request_id=158634070419724811826133&biz_id=0&utm_source=distribute.pc_search_result.none-task-blog-blog_SOOPENSEARCH-4
中
https://blog.csdn.net/qq_27825451/article/details/102457143?depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1&utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1
装饰器模板
1， https://www.cnblogs.com/wangchengpei/p/10958025.html asyncio.run() 解决：RuntimeError: Event loop is closed Task was destroyed but it is pending!
之前是用的python3.6 ，现在升级到3.7使用asyncio.run() 就不会出现问题
2， http://www.voidcn.com/article/p-vzddyyrw-bwr.html
3， http://www.voidcn.com/article/p-vzddyyrw-bwr.html aiomysql 可以去掉loop参数
