Pascal 所有变量类型详表

名 称             标识符           数值范围                                       存储空间(byte)
短整型           shortint          -2⁷..+2⁷-1                                       1
整型               integer          -2¹⁵..+2¹⁵-1                                    2
长整型            longint          -2³¹..+2³¹-1                                    4

64位整数        int64             -2⁶³..+2⁶³-1                                    8
字节型            byte              0..2⁸-1                                            1

双字节型        word              0..2¹⁶-1                                          2

 

单精度型       single            1.5e-45..3.4e38                              4
基本实型        real               2.9e-39..1.7e38                             8
双精度型       double           5.0e-324..1.7e308                         8
扩展型           extended       3.4e-4932..1.1e4932                    10
装配型           comp             -2⁶³+1..2⁶³-1                                  8

                                        (绝对值范围)

字符型           char               asc2码 0..255                               1
布尔型           boolean         TRUE、FALSE                              1