EastSummer
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EastSummer
### [补充]严格模式下this的几种指向 1. 全局作用域中的this ```js "use strict"; console.log("this === window",this === window); // true ``` 2. 全局作用域中函数中的this ```js "use strict"; function f1(){ console.log(this); } var f2 = () => {...