JavaScript变量
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>JavaScript变量</title> </head> <body> <script> var x=2; var y=3; var z=x+y; alert(z); </script> </body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>JavaScript变量</title> </head> <body> <script> var x=2; var y=3; var z=x+y; alert(z); </script> </body> </html>