Int a Well, one, function has called swap, takes one int called a, printf followed by another int called b, and as we've seen with print f, if you have multiple arguments, you separate them by commas.
好的，函数叫做swap，一个参数是，另一个参数是int, B，我们看到的，如果你有好几个参数，把它们用逗号分开。
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