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<!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>03-输出语句</title>
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</head>
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<body>
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<script>
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window.alert("hello js"); //写入警告框
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document.write("hello js 2~"); //写入html页面
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console.log("hello js 3~") ; //写入浏览器的控制台
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</script>
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</body>
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</html> |