pascal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