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Beginners love to develop small games, such as snakes and Tetris. To develop such games, they must be controlled by keys. Generally, we use the getch () function to receive keys directly, then convert it to the corresponding ASCII code, and compare
The problem of character encoding seems to be very small, often overlooked by technical staff, but it can easily lead to some puzzling problems. Here is a summary of the character encoding of some of the popular knowledge, I hope to be helpful to
ASCII, American Standard Code for Information Interchange reads like "astkey" and defines the English letters or the same result and meaning represented by the 127 numbers ranging from 0 to one hundred and twenty-eight. Because only seven digits
The difference between Linux and Windows return line break
source of the problem: "Carriage return" (carriage return) VS "line feed"Before the computer appeared, there was a gadget called a telex typewriter (teletype Model 33) that could play 10
ASCII, American Standard Code for information interchange reads like "Aspen Key," which defines the English letters or the same results and meanings that are represented by 128 numbers from 0 to 127. Since only 7 bits (bit) are used to represent
Chr () and ASCII () functions in Oracle (attached: characters commonly used and ASCII table)keywords: chr ()Chr () function action: Special handling of "special" charactersThe corresponding loadline and special characters can be queried in PlsqlChr (
At the beginning of the concept is only a little vague, not too concerned about, the results of a search only found that this thing is too interesting, not only has an interesting story, but also has a lot of doorways, but also brought up some of
Oracle provides the following explanations for ASCII and CHR functions: ASCII (x) gets the ASCII value of the character X, CHR () and ASCII () have the opposite effect. That is, the ASCII function is used to convert characters into their
ASCII code table and keyboard code table. It is useful for the sendmessage function.
ASCII code table
ASCII Value
Control characters
ASCII Value
Control characters
ASCII Value
Character encoding: ASCII, Unicode, UTF-8, gb2312
1. ASCII code
We know that in a computer, all information is eventually represented as a binary string. Each binary bit has two states: 0 and 1. Therefore, eight binary bits can combine 256
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