delphi整型数据表
Integer |
-2147483648..2147483647 |
signed |
32-bit |
Cardinal |
0..4294967295 |
unsigned |
32-bit |
Shortint |
-128..127 |
signed |
8-bit |
Smallint |
-32768..32767 |
signed |
16-bit |
Longint |
-2147483648..2147483647 |
signed |
32-bit |
Int64 |
-2^63..2^63? |
signed |
64-bit |
Byte |
0..255 |
unsigned |
8-bit |
Word |
0..65535 |
unsigned |
16-bit |
Longword |
0..4294967295 |
unsigned |
32-bit |
|
|
|
|
C++
char |
-128 到 127 或者 0 到 255 |
|
1 个字节 |
unsigned char |
0 到 255 |
|
1 个字节 |
signed char |
-128 到 127 |
|
1 个字节 |
int |
-2147483648 到 2147483647 |
|
4 个字节 |
unsigned int |
0 到 4294967295 |
|
4 个字节 |
signed int |
-2147483648 到 2147483647 |
|
4 个字节 |
short int |
-32768 到 32767 |
|
2 个字节 |
unsigned short int |
0 到 65,535 |
|
2 个字节 |
signed short int |
-32768 到 32767 |
|
2 个字节 |
long int |
-9,223,372,036,854,775,808 到 9,223,372,036,854,775,807 |
|
8 个字节 |
signed long int |
-9,223,372,036,854,775,808 到 9,223,372,036,854,775,807 |
|
8 个字节 |
unsigned long int |
0 to 18,446,744,073,709,551,615 |
|
8 个字节 |
float |
+/- 3.4e +/- 38 (~7 个数字) |
|
4 个字节 |
double |
+/- 1.7e +/- 308 (~15 个数字) |
|
8 个字节 |
long double |
+/- 1.7e +/- 308 (~15 个数字) |
|
16 个字节 |
wchar_t |
2 或 4 个字节 |
|
1 个宽字符 |
|
|
|
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结束:
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