The difference between the full angle and the half angle of the input method is

What is a full angle and a half angle?

(1) Full-width--- means that one character occupies two standard character positions.

Chinese characters and English characters that specify full-width characters and graphic symbols and special characters in GB2312-80 are full-width characters. General system commands do not use full-width characters, but full-width characters are used only for word processing.

(2) Half-width - refers to a character occupying a standard character position.

The usual English letters, number keys, and symbol keys are all half-width, and the half-width display internal code is one byte. Inside the system, the above three characters are processed as basic code, so the user usually uses half-width when entering commands and parameters.

B What is the difference between full angle and half angle? Under what circumstances?

The full angle occupies two bytes, and the half angle occupies one byte.

The full-width half-width is mainly for punctuation. The full-width punctuation occupies two bytes, and the half-width occupies one byte. Whether it is half-width or full-width, Chinese characters still occupy two bytes

Only half-width punctuation (excluding data inside a string) can be used in the source code of the program.

Only half-width punctuation can be used on computers that do not support languages ​​such as Chinese characters. There is no concept of a full-width half-width.)

Other times, it seems that there is basically no distinction between full-width and half-width. You think that kind of good-looking use is

,.?'! &hellip ;… These are half-width

,. ? ‘! …… These are full-width

For most fonts, the full-width looks bigger than the half-width. Of course, this is not the essential difference.

The full-width is the punctuation of Chinese. The half-width is English.吧.

C The difference between full-width and half-width

The full-width is the letter and the number of words that occupy the same width as the Chinese character

The half-width is the ASCII character, without Chinese characters. The alphanumeric characters and characters entered when the input method is used are half-width.

Examples are as follows: (The keyboard input is the same, the input method is different)

[Full angle example] AabB1234@#$%^&*;,. :

[Half-width example] AabB1234@$%^&*;,.:

When the Chinese character input method appears, the alphanumeric input defaults to half-width, but the punctuation is the default. For the full angle (as shown below), you can change it by clicking the corresponding button on the input method toolbar. The button to the left of the input method name is to change the input of Chinese and English. The circle and semicircle on the right side are the full-width half-width of the letters and numbers. Then on the right side of “.,” or ". , " is used to change the Chinese and English settings of the punctuation marks (Chinese punctuation is full angle, English punctuation is half-width), the rightmost keyboard icon is used to display the soft keyboard, you can enter some special characters or letters in other languages .

In the figure below, the first picture is the Chinese input method, half-width alphanumeric, full-width punctuation; the second is the opposite.

D About "full angle" and "half-angle":

Full-width: refers to GB2312-80 ("Chinese character coded character set · basic set" for information exchange) The various symbols, such as A, B, C, 1, 2, 3, etc., should be understood as Chinese characters.

Half-width: refers to various symbols in the ASCII code of English documents, such as A, B, C, 1, 2, 3, and so on.

In VFP commands and programs, the command word cannot be used in full-width. For example, the clear screen command should be CLEAR, not CLEAR. Therefore, it should be in the state of closing the Chinese character input, or even in the Chinese character input state, it should be in the half-angle state.

The input method status bar should be: the state in the middle, not the state, can be switched by Shift+Space. .

About Chinese/English punctuation:

Chinese punctuation: such as:, “”"()? . Etc., can not be used in the VFP command, such as the definition of the variable name is "Cold Kaihui" rdquo; the assignment statement command is:

English punctuation: such as:, "<>()?.

name="曹开慧"

Can't enter:

name=“Cao Kaihui”

E Novice charging: full-width half-width of Chinese characters Separate

The characteristics of Chinese characters make us encounter two most basic and very important concepts, namely full-width and half-width.

The image says that when using the English input method, the position of an English character (such as "a" in the computer screen, people call it "half-angle", and a Chinese character The position is equal to two English characters, so it is called "full angle".

In the computer system we use every day, the initial input method generally defaults to the English input method. At this time, it will naturally be in the half-angle state. No matter whether it is input letters, symbols or numbers, it always only takes one. English characters