"Learning Notes", "C language" in the system

1. What is a binary

is a way of counting, a representation of a number

2. Binary

1> features: only 0 and 1, every 2 into 1

2> writing format: 0b or 0b start

3> application: Binary instruction \ Binary, variable in memory is binary storage

4> Binary and Decimal conversions

5> N is the range of data that bits can represent (regardless of negative numbers): 0~2 N-square-1

3. Eight binary

1> Features: 0~7, every eight into a

2> writing format: 0 opening

3> octal binary and binary conversion

4.16 Binary

1> Features: 0~f, every 16 into a

2> writing format: 0x or 0X start

3> 16 binary and binary conversion

5. Format printf output in a different binary form

1#include <stdio.h>2 3 /*4 %d\%i output integer in decimal form5 %c Output Character6 %p Output Address7 %f Output Decimal8 %o Output integer in octal form9 %x 16 in binary form output integerTen   One  */ A  - intMain () - { the     //By default, it is the decimal -     intNumber = A; -      -     //Binary (0b or 0B start) +     intNumber2 =0b1100; -      +     //octal (0 start) A     intNumber3 =014; at      -     //16 binary (0x or 0X start) -     intNumber4 =0xc; -      -     //%d outputs a numeric value as a 10-binary integer -printf"%x\n", number); in      -     return 0; to}

"Learning Notes", "C language" in the system