this指向: https://blog.csdn.net/Cool_so_cool/article/details/106241746
区别:https://blog.csdn.net/Alexanderhs/article/details/90031546
改变this: https://blog.csdn.net/weixin_44976833/article/details/101311435
apply实现一个bind函数:http://www.fly63.com/article/detial/7482
https://www.cnblogs.com/sexintercourse/p/12285157.html
https://blog.csdn.net/Cool_so_cool/article/details/104733725
https://blog.csdn.net/astonishqft/article/details/82899965
https://www.cnblogs.com/mengff/p/9656486.html
https://segmentfault.com/a/1190000020782681
https://www.jianshu.com/p/fde0038e4633
https://www.jianshu.com/p/1c142ec2ca45
https://www.sohu.com/a/256702171_647584
https://www.cnblogs.com/a-cat/p/12297764.html
https://blog.csdn.net/Cool_so_cool/article/details/105523278
https://jingyan.baidu.com/article/c1a3101e63e26ade656debed.html
https://www.jianshu.com/p/c8b86b09daf0
https://www.jianshu.com/p/667a20d008cf
===比较类型和值,==只比较值。
https://www.cnblogs.com/jack-wangsir/articles/12564674.html
https://blog.csdn.net/Cool_so_cool/article/details/105522183
https://www.cnblogs.com/amiezhang/p/11349450.html
https://www.cnblogs.com/qing-5/p/11343125.html
https://www.jb51.net/article/154921.htm
https://blog.csdn.net/weixin_38629529/article/details/84954156
https://blog.csdn.net/Cool_so_cool/article/details/106515954
https://www.cnblogs.com/EricZLin/p/8855567.html
https://blog.csdn.net/Cool_so_cool/article/details/106537508
https://www.jianshu.com/p/ac6a47d16414