常量标签的限制使分支计算成为了一种O(1)运算，而不是O (n)运算。
The restriction to constant labels enables the branch computation to be an o (1) operation rather than an o (n) operation.
与数值类型相关的其他两个重点是常量(如上例中的100，只是明确表达的数字)和位运算。
Two other important points related to the numeric types are literals, which are just explicitly expressed Numbers, like 100 in the previous examples, and bit operations.
它能包含变量、常量、运算符，例如加号和减号。
It can include variables, constants, and operating symbols, such as plus and minus signs.
表达式必须有整数类型并且只能包括整数常量，字符常量，以及定义了的运算符。
Expressions must have integral type and can include only integer constants, character constants, and the defined operator.
在不使用运算放大器的情况下，直接利用晶体三极管与数字式电流表测出扩散电流，可以得到较为准确的玻尔兹曼常量。
The diffusion current is measured using transistor and digital ammeter instead of operational amplifiers, and the Boltzmann constant is obtained accurately.
接口不能包含常量、字段、运算符、实例构造函数、析构函数或类型。
An interface cannot contain constants, fields, operators, instance constructors, destructors, or types.
利用几何方法及计算机模拟研究开普勒第二定律，运算结果面积速度近似为常量，本文中精度为1 0 - 13。
Using a geometric method and computer simulation, the second Kepler's Law is studied. The calculated result shows that the areal velocity is approximately constant with an accuracy of 10 -13 .
常量不能用查询表达式进行初始化，因为常量只能用文本、命名常量和数学运算符的某一组合进行初始化。
Constants cannot be initialized with query expressions because constants may only be initialized with some combination of literals, named constants, and mathematical operators.
自增自减运算是C语言常用的运算，它只能作用于变量，不能作用于常量或表达式。
Self-increase operation and the self-reduction operation are the operations used in C language, they can only act on the variable, not act on the constant or the expression.
分为四类：标识符、关键字、运算符和分隔符 和 直接常量。
There are four classes: identifiers, keywords, operators and delimiters, and literals.
分为四类：标识符、关键字、运算符和分隔符 和 直接常量。
There are four classes: identifiers, keywords, operators and delimiters, and literals.
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