编程c语言 十进制转八进制
Octal value has 8 digit values from 0 to 7, with the base 8. (Read more about Computer number systems), here we will learn how to work with octal values in c programming language?
八进制值具有从0到7的8位数字，以8为底。(阅读有关计算机编号系统的更多信息)，这里我们将学习如何使用c编程语言来处理八进制值？
C编程中八进制数的表示 (Representation of octal numbers in C programming)
In C programming language, an octal number is represented by preceding with "0", thus the value in octal can be written as "0123" (which is equivalent to 83 in Decimal).
在C编程语言中，八进制数以“ 0”开头表示，因此八进制的值可以写为“ 0123” (相当于Decimal中的83 )。
在变量中分配八进制数 (Assigning the octal number in a variable)
There is no special type of data type to store octal values in C programming, octal number is an integer value and you can store it in the integral type of data types (char, short or int).
在C编程中，没有特殊的数据类型来存储八进制值，八进制数是整数值 ，您可以将其存储在数据类型的整数类型( char ， short或int )中。
Let suppose, we have a value in octal "0123" (83 in Decimal).
假设，我们有一个八进制“ 0123”的值(十进制为83)。
We are storing "0123" in an unsigned char variable (83 is small value and can be stored with in a Byte).
我们将“ 0123”存储在一个无符号的char变量中(83是一个小值，可以用Byte存储)。
Consider the following statements
考虑以下语句
unsigned char a=0123;
以八进制格式打印数字 (Printing the number in octal format)
To print integer number in octal format, "%o" is used as format specifier in printf() statement.
要以八进制格式打印整数，请在printf()语句中将“％o”用作格式说明符。
Consider the code, which is printing the value of a...
考虑下面的代码，它打印出一个 ...的值。
#include <stdio.h>
int main()
{
unsigned char a=0123;
printf("value of a (in octal) : %o\n", a);
printf("value of a (in decimal): %d\n", a);
return 0;
}
Output
输出量
value of a (in octal) : 123
value of a (in decimal): 83
以八进制格式读取值 (Reading value in octal format)
"%o" can be used with scanf() statement to read the value in octal format from the user.
可以将“％o”与scanf()语句一起使用，以从用户读取八进制格式的值。
Consider the following code
考虑以下代码
#include <stdio.h>
int main()
{
unsigned int num;
printf("Input value in octal: ");
scanf("%o", &num);
printf("Entered value is in octal format : %o\n", num);
printf("Entered value is in decimal format: %d\n", num);
return 0;
}
Output
输出量
Input value in octal: 12345
Entered value is in octal format : 12345
Entered value is in decimal format: 5349
通过分配八进制值来声明整数数组 (Declaring integer array by assigning octal values)
Consider the following example, where integer array is declaring with the octal values and printing in both formats Decimal and Octal.
考虑下面的示例，其中整数数组使用八进制值声明并以Decimal和Octal两种格式打印。
#include <stdio.h>
int main()
{
int arr[]={ 0100, 0101, 0123, 0761, 10};
int i;
printf("Array elements are\n");
for(i=0;i<5;i++)
printf("Decimal: %d, Octal: %o\n",arr[i],arr[i]);
return 0;
}
Output
输出量
Array elements are
Decimal: 64, Octal: 100
Decimal: 65, Octal: 101
Decimal: 83, Octal: 123
Decimal: 497, Octal: 761
Decimal: 10, Octal: 12
Read more...
...
Octal literals in C language
C语言的八进制文字
Hexadecimal (hex) literals in C language
C语言中的十六进制(十六进制)文字
Working with hexadecimal numbers in C language
使用C语言处理十六进制数
翻译自: https://www.includehelp.com/c/working-with-octal-values-in-c-programming-language.aspx
编程c语言 十进制转八进制
