abstract：<!DOCTYPE html> <html> <body> <h1>JavaScript 变量</h1> <script> var x = 7; </script> </body> </html>
<!DOCTYPE html> <html> <body> <h1>JavaScript 变量</h1> <script> var x = 7; </script> </body> </html>
Correcting teacher：查无此人Correction time：2019-06-11 09:08:29
Teacher's summary：完成的不错。刚接触编程，理解起来比较辛苦。要坚持，继续加油。
