How to draw a smiling expression using canvas (code example)

The content of this article is about how to use canvas to draw a smiling expression (code example). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

During my internship, I was asked to use canvas to draw an expression. It was relatively simple, so I went straight to the code without saying much:

    
        你的浏览器居然不支持Canvas!
    

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