What do %x and %o mean in C language?

%x and %o in C language

In C language, "%x" and "%o" are format specifiers used in format strings. Used to specify how to print integers:

• %x: Print an unsigned hexadecimal integer.
• %o: Print an unsigned octal integer.

Usage:

To print an integer in hexadecimal or octal format, you need to use formatting functions such as printf() or sprintf() . The format specifier is placed before the variable to be printed. For example:

int number = 123;
printf("十六进制：%x\n", number);
printf("八进制：%o\n", number);

Output:

Running the above code will output:

<code>十六进制：7b
八进制：173</code>

Note:

• Unsigned integers are represented as non-negative numbers.
• Hexadecimal numbers are represented using 0-9 and a-f (or A-F).
• Octal numbers are represented using 0-7.

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