Decimal, 16 binary, binary conversion

1 1 1 1 1 1 1 1

128 64 32 16 8 4 2 1

150=128+16+4+2=10010110

127=64+32+16+8+4+2+1=01111111

50=32+16+2=00110010

0123456789abcdef

0x.11 0x.12 0x.13 0x.14 0x.15 0x.16

11 12 13 14 15 16

1011 1100 1101 1110 1111 10000

General program code is the 16 mechanism written, the execution of the file or program code is binary write, decimal is commonly used in the IP division;

As we all know, IP is made up of four numbers, here, let's first look at the Class 3 commonly used IP

Class A IP segment 0.0.0.0 to 127.255.255.255

Class B IP segment 128.0.0.0 to 191.255.255.255

Class C IP segment 192.0.0.0 to 223.255.255.255

This article is from "Try to be brave" blog, declined reprint!

Decimal, 16 binary, binary conversion