8.1. Numeric Types

8.1. Numeric Types

8.1.数字类型

Numeric types consist of two-, four-, and eight-byte integers, four- and eight-byte floating-point numbers,and selectable-precision decimals. Table 8.2 lists the available types.

数字类型包括2字节整数、四字节整数和八字节整数，以及四字节和八字节浮点数和可选精度小数类型。表8.2列出了可用数据类型。

The syntax of constants for the numeric types is described in Section 4.1.2. The numeric types have a full set of corresponding arithmetic operators and functions. Refer to Chapter 9 for more information.The following sections describe the types in detail.

有关数字类型的常量语法，请参见第4.1.2节。 数值类型具有全套对应的算术运算符和函数。有关更多信息，请参见第9章。以下各节详细介绍了这些类型。