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21 lines
510 B
HTML
21 lines
510 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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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Document</title>
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</head>
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<body>
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<script>
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function foo() {
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a = 2; // 此处的a相当于window.a
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console.log(a);
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}
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console.log(a); //打印结果是2
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</script>
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</body>
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</html>
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