案例:javascript案例     状态:可编辑再运行    进入竖版
 运行结果 
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<!DOCTYPE html>
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<html>
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<body>
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<script>
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var carname1="Bill Gates";
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var carname2='Bill Gates';
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var answer1="Nice to meet you!";
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var answer2="He is called 'Bill'";
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var answer3='He is called "Bill"';
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document.write(carname1 + "<br>")
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document.write(carname2 + "<br>")
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document.write(answer1 + "<br>")
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document.write(answer2 + "<br>")
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document.write(answer3 + "<br>")
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</script>
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</body>
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</html>
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