通过将此代码与上面的XML进行比较，您应当能够很好地理解API的操作方式。
Compare this code with the XML above, and you should be able to get a good sense of how the API operates.
通常，不同的中央处理单元 (CPU) 和操作环境以不同的方式存储浮点数，简单地比较期望值和实际值是无效的。
Typically, different central processing units (CPUs) and operating environments store floating points differently and simple comparisons between expected and actual values don't work.
避免名字冲突的一个比较好的操作方式，是在开始处理项目之前定义自己的名字空间。
A good practice to avoid name conflicts is to define your own name space before starting to work on the project.
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