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34 lines
819 B
HTML
34 lines
819 B
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Title</title>
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<script>
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function Timer(){
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this.s1 = 0;
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this.s2 = 0;
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// 箭头函数
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setInterval(() => {
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this.s1++;
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console.log("****", this);
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}, 1000);
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// 普通函数
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setInterval(function (){
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console.log("####", this);
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console.log("####", this.s2);
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this.s2++;
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console.log("####", this.s2);
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}, 1000);
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}
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var timer = new Timer();
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setTimeout(() => console.log('s1: ', timer.s1),3200); //s1: 3
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setTimeout(() => console.log('s2: ', timer.s2),3200); //s2: 0
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</script>
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</head>
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<body>
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hi!!
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</body>
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</html> |