初学canvas，做个练习。代码如下：<!doctype html> <html> <head> <meta charset="utf-8"> <title>井字游戏</title> </head> <body> <canvas id="well" width="500" height="500" style="display: block; margin: 0 auto;"></canvas>
初学canvas，做个练习。代码如下：<!doctype html> <html> <head> <meta charset="utf-8"> <title>井字游戏</title> </head> <body> <canvas id="well" width="500" height="500" style="display: block; margin: 0 auto;"></canvas>