使用极大或极小的数字或者模仿从数值类型派生的私有数据类型。

Using very large or very small Numbers or emulating private data-types derived from numeric types.

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通过表示一个数字的数值来识别其标准形式。

Identifying the standard form of a number given its place value representation.

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第二个结果以类regex的方式更特定地描述了一个整数值看上去象什么：一个或多个数字的连续序列。

The second production describes in regex-like fashion more specifically what an integer literal looks like: a contiguous sequence of one or more numeric digits.

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Numbers are there to do numeric things, strings are our fundamental way of representing textual information.

数字是用来描述数值的，字符串是表现,文本信息的基本方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

Just take a look: if this is 9, 5 divided by 9 is always going to be 0 point something, and if you thus have two integers and you're rounding down, which is what happens when you do integral math we're using this operator, I'm going to get zero times whatever.

稍微看一看：如果这是9，5除以9会得到,0点几，如果你用两个整型数,你舍去小数，这就是当你们,用整型数使用这个操作的所发生的事情，我将得到数值0乘以任何一个数字。

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