In addition to basic picture constructors like circle and rectangle, there's a hc-append function that combines pictures. When you start composing function calls in Racket, it looks like this.
有个叫hc -append的函数能把circle和rectangle这些函数生成的图片组合起来。
In addition to basic picture constructors like circle and rectangle, there's a hc-append function that combines pictures. When you start composing function calls in Racket, it looks like this.
有个叫hc -append的函数能把circle和rectangle这些函数生成的图片组合起来。
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