Chapter 6 binary, octal, and hexadecimal
6.1 why do we need octal and hexadecimal?
6.2 decimal number conversion to decimal number
6.2.1 convert binary to decimal
6.2.2 convert octal to decimal
6.2.3 expression of the octal number
6.2.4 use of Octal
6.1 why do we need octal and hexadecimal?
In programming, we usually use 10 hexadecimal notation ...... C/C ++ is a high-level language.
For example:
Int A = 100, B = 99;
However, because the representation of data in a computer exists in binary
1. PrefaceEvery time the most boring thing, is not want to get up, do not want to eat, founder is not want to move, lying in bed, looking at the mobile phone, bored brush QQ space, although now very few people play QQ space, but this habit has been
implement various transformations in the Java language (binary, octal, decimal, hexadecimal, mainly using Java Swing technology)
1, the original question
Enter a hexadecimal number from the keyboard, convert it to a decimal number, and then output.
Data representation literal integer literalTo write a program, the first thing to face is data. How is the data represented in the program? Data is usually represented in two ways, depending on how it is represented: visual representation and
Original Works. For reprinted works, indicate the source By dknt From bbs.blueidea.com.Statement:1. This article teaches you how to implement the bar code on the web page, reflecting the idea of using the web page production technology to
Single-chip microcomputer tutorial 4. C Language Foundation and realization of running lightsC language, people who have not touched the computer programming language will see it very mysterious, it feels very difficult, and in my opinion, C
Reprint Address: http://hi.baidu.com/thewillreigns/blog/item/67e665c4296e69c038db492d.html
Char and unsigned char are unsignedBoth are used words as words that are indistinguishable, but when integers are used differently:Char integer range is-128
Data representation literal integer literalto write a program, the first thing to face is data. How is the data represented in the program? Data is usually represented in two ways, depending on how it is represented: visual representation and
Data types are used when declaring variables, and some data types, such as integers and strings, are used earlier. All data types in Python are classes, and each variable is an "instance" of the class. There is no concept of a basic data type, so
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