abstract：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>中文网作业（JavaScript变量）</title> <body> <script> var x=5; va
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>中文网作业（JavaScript变量）</title> <body> <script> var x=5; var y=6; var z=x+y; document.write(x + "<br>"); document.write(y + "<br>"); document.write(z + "<br>"); </script> </body> </html>
Correcting teacher：天蓬老师Correction time：2019-07-13 13:15:37
Teacher's summary：document.write(x + "<br>");
document.write(y + "<br>");
document.write(z + "<br>");
应该直接输出到控制台, console.log()
