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摘要: 考核,编写 API ,缺陷修复 ,框架测试,规范 API 考试

 

逝者如斯夫! 10 月长假就这样过去了,闭上双眼,回忆,我看到了在军训中生气勃勃的大学新生,看到了一条绿树成荫又不乏豪车的小路,看到了办公室里热火朝天的加班气氛,看到了家乡的变化。

09-17
数字123在计算机中所占的字节数取决于其数据类型和存储方式。以下是几种常见编程语言中不同数据类型下数字123所占的字节数: ### Python 在Python中,整数类型 `int` 可以动态调整大小以适应不同大小的整数。因此,数字123在Python中所占的字节数会根据具体情况而定。可以使用 `sys.getsizeof()` 函数来获取对象的字节大小: ```python import sys num = 123 print(sys.getsizeof(num)) ``` 通常,小整数(如123)在Python中会占用28个字节。 ### C语言 在C语言中,数字123可以使用不同的数据类型来存储,不同数据类型所占的字节数不同: - `char` 类型通常占1个字节,不过 `char` 一般用于存储字符,若用其存储整数,范围有限。若要存储123,只要不超出其表示范围(-128 到 127 或 0 到 255,取决于是否有符号),则占1个字节。 ```c #include <stdio.h> int main() { char num = 123; printf("Size of char: %zu bytes\n", sizeof(num)); return 0; } ``` - `short` 类型一般占2个字节,能表示更大范围的整数。 ```c #include <stdio.h> int main() { short num = 123; printf("Size of short: %zu bytes\n", sizeof(num)); return 0; } ``` - `int` 类型在大多数系统中占4个字节。 ```c #include <stdio.h> int main() { int num = 123; printf("Size of int: %zu bytes\n", sizeof(num)); return 0; } ``` - `long` 类型在32位系统中通常占4个字节,在64位系统中占8个字节。 ```c #include <stdio.h> int main() { long num = 123; printf("Size of long: %zu bytes\n", sizeof(num)); return 0; } ``` ### Java 在Java中,整数类型有明确的字节大小: - `byte` 类型占1个字节,范围是 -128 到 127,123 可以用 `byte` 类型存储。 ```java public class Main { public static void main(String[] args) { byte num = 123; System.out.println("Size of byte: " + Byte.BYTES + " bytes"); } } ``` - `short` 类型占2个字节。 ```java public class Main { public static void main(String[] args) { short num = 123; System.out.println("Size of short: " + Short.BYTES + " bytes"); } } ``` - `int` 类型占4个字节。 ```java public class Main { public static void main(String[] args) { int num = 123; System.out.println("Size of int: " + Integer.BYTES + " bytes"); } } ``` - `long` 类型占8个字节。 ```java public class Main { public static void main(String[] args) { long num = 123; System.out.println("Size of long: " + Long.BYTES + " bytes"); } } ```
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