一,效果图。
二,代码。
<!doctype html> <html> <head> <meta charset="utf-8"> <title>javascript 语法</title> </head> <body> <!--javascript 字面量--> <p id="demo"></p> <script> document.getelementbyid("demo").innerhtml = 123e5; document.getelementbyid("demo").innerhtml = "john doe"; document.getelementbyid("demo").innerhtml = 5 * 10; var length; length = 6; document.getelementbyid("demo").innerhtml = length; document.getelementbyid("demo").innerhtml = (5 + 6) * 10; </script> </body> </html>
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