QBasic Argument Achievement
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04 July 16:42
Argument Achievement
The argument achievement command is PRINT. This is the command that we will be exploring through this section. Book takes a alternation of arguments. What that agency is that in QBasic, afterwards accounting Book (note, for a abbreviate cut, just blazon a catechism mark ?) a programmer types the things he wants displayed and Book will affectation them. The first program will affectation the words Accost Apple on the screen.
PRINT [Text to screen]
PRINT Accost World
First, archetype aggregate (in this case, one line, but after programs will be abundant longer) into a argument editor or into QBasic itself and save it as 1HELLO.BAS. Next accessible it in QBasic (if you are not already there) and columnist F5. This will run the program. A atramentous awning with the words Accost Apple in white in the high larboard bend should appear. This is your first QBasic program. Now, Columnist F5 again. Now there should be 2 curve adage Accost World. This is because QBasic does not bright the awning every time a program is run. To change this we will use the command CLS, which stands for Bright Screen. We will be searching at some additional new concepts in the next program as well.
Book This band will never be seen
CLS
Book Hello;
Book World,
Book Accost Jupiter
Book Acceptable Bye,,For; Now
Book 1,2,3,4,5
Addressing 2HELLO.BAS in band order, the first band prints This band will never be apparent to the screen, but in the additional line, the CLS command clears the awning anon after, so it will not be apparent (technically it flashes at the basal anatomy columns. Accost Jupiter should band up with 2 at the bottom. Added than one breach can be acclimated in a row. In this example, afterwards Acceptable Bye two commas are acclimated to move For Now over two tab columns. For Now should band up with 3.
My final account on this affair is to play about with it. Try using commas and semicolons in a program.
CLS
hello$=Hello World
number=12
Book hello$, number
Variables are acclimated to abundance information. They are like containers. You can put advice in them and after change the advice to something else. In this first archetype they may not assume actual advantageous but in the next area (Input) they will become actual useful.
In this archetype we use two types of variables - cord variables and numeric variables. A cord capricious holds words, a cord of characters (a appearance is a number, letter or symbol). In this case the characters are letters. A cord capricious is denoted by catastrophe the name of the capricious with a dollar sign. The cord capricious in this program is hello$. What anytime you set hello$ according to will be displayed in the Book statement. The numeric capricious is number. Numeric variables do not accept a appropriate catastrophe like cord variables.
LOCATE 14, 34 position the larboard eye
Book <=> draw the larboard eye
LOCATE 14, 43 position the appropriate eye
Book <=> draw the appropriate eye
LOCATE 16, 39 position the nose
Book o|o draw the nose
LOCATE 18, 36 position the mouth
Book \_______/ draw the mouth
LOCATE 19, 42 the bottom
Book The Face by QBasic
Locate allows you to position the cursor for the next section of argument output. Adverse to cartesian coordinates which apprehend (X,Y), the locate account is LOCATE Y,X. In this case Y is the ambit down from the top of the awning and X is the ambit from the larboard ancillary of the screen. The cause that LOCATE does not chase the accepted alike arrangement is that it is not all-important to cover the X portion, you can use the architecture LOCATE Y which just specifies the band to alpha on.
CLS
LOCATE 14, 34
Blush 9
Book <=>
LOCATE 14, 43
Book <=>
Blush 11
LOCATE 16, 39
Book o|o
Blush 4
LOCATE 18, 36
Book \_______/
Blush 20
LOCATE 19, 42
Book U
LOCATE 1, 1
Blush 16, 1
Book Accost World
The program 5FACE.BAS is torn into sections to create it easier to read. This is an archetype of a acceptable programing habit. Anniversary three band section of cipher anniversary section of cipher specifies what blush its allotment of the face should be, area it should be and what it should attending like. The adjustment of the position and the blush is unimportant. The new account Blush allows you to change the blush of the text. Already changed, all achievement will be in the new blush until Blush or CLS is used. The architecture for the Blush account is:
COLOR [foreground]
or
COLOR [foreground],[background]
The colors are appointed by numbers which will be discussed in the next section.
There are 16 colors, from 0 to 15.
0 Black
1 Blue
2 Green
3 Sky Blue
4 Red
5 Purple
6 Orange
7 Ablaze Blah (White)
8 Aphotic Blah (Light Black)
9 Ablaze Blue
10 Ablaze Green
11 Ablaze Sky Blue
12 Ablaze Red
13 Ablaze Purple
14 Chicken (Light Orange)
15 White (Light White)
If you attending anxiously at this blueprint you can see that there are 8 capital colors (0 through 7) and then those colors repeat, anniversary in a lighter shade. This makes it abundant easier to acquire the blush scheme. Aswell accessible are blinking colors. At 16 the blush alpha over afresh with blinking atramentous and extend through 31 (blinking white). However, the blinking advantage is not accessible for the background, alone for the argument (foreground).
In this area we looked at several methods to dispense output. All centered about the Book statement. LOCATE and Blush adapted area the argument was displayed and how it looked. We acclimated CLS to bright the screen. There was aswell a basal addition to variables which will be broadcast aloft in after sections.
The argument achievement command is PRINT. This is the command that we will be exploring through this section. Book takes a alternation of arguments. What that agency is that in QBasic, afterwards accounting Book (note, for a abbreviate cut, just blazon a catechism mark ?) a programmer types the things he wants displayed and Book will affectation them. The first program will affectation the words Accost Apple on the screen.
PRINT [Text to screen]
PRINT Accost World
First, archetype aggregate (in this case, one line, but after programs will be abundant longer) into a argument editor or into QBasic itself and save it as 1HELLO.BAS. Next accessible it in QBasic (if you are not already there) and columnist F5. This will run the program. A atramentous awning with the words Accost Apple in white in the high larboard bend should appear. This is your first QBasic program. Now, Columnist F5 again. Now there should be 2 curve adage Accost World. This is because QBasic does not bright the awning every time a program is run. To change this we will use the command CLS, which stands for Bright Screen. We will be searching at some additional new concepts in the next program as well.
Book This band will never be seen
CLS
Book Hello;
Book World,
Book Accost Jupiter
Book Acceptable Bye,,For; Now
Book 1,2,3,4,5
Addressing 2HELLO.BAS in band order, the first band prints This band will never be apparent to the screen, but in the additional line, the CLS command clears the awning anon after, so it will not be apparent (technically it flashes at the basal anatomy columns. Accost Jupiter should band up with 2 at the bottom. Added than one breach can be acclimated in a row. In this example, afterwards Acceptable Bye two commas are acclimated to move For Now over two tab columns. For Now should band up with 3.
My final account on this affair is to play about with it. Try using commas and semicolons in a program.
CLS
hello$=Hello World
number=12
Book hello$, number
Variables are acclimated to abundance information. They are like containers. You can put advice in them and after change the advice to something else. In this first archetype they may not assume actual advantageous but in the next area (Input) they will become actual useful.
In this archetype we use two types of variables - cord variables and numeric variables. A cord capricious holds words, a cord of characters (a appearance is a number, letter or symbol). In this case the characters are letters. A cord capricious is denoted by catastrophe the name of the capricious with a dollar sign. The cord capricious in this program is hello$. What anytime you set hello$ according to will be displayed in the Book statement. The numeric capricious is number. Numeric variables do not accept a appropriate catastrophe like cord variables.
LOCATE 14, 34 position the larboard eye
Book <=> draw the larboard eye
LOCATE 14, 43 position the appropriate eye
Book <=> draw the appropriate eye
LOCATE 16, 39 position the nose
Book o|o draw the nose
LOCATE 18, 36 position the mouth
Book \_______/ draw the mouth
LOCATE 19, 42 the bottom
Book The Face by QBasic
Locate allows you to position the cursor for the next section of argument output. Adverse to cartesian coordinates which apprehend (X,Y), the locate account is LOCATE Y,X. In this case Y is the ambit down from the top of the awning and X is the ambit from the larboard ancillary of the screen. The cause that LOCATE does not chase the accepted alike arrangement is that it is not all-important to cover the X portion, you can use the architecture LOCATE Y which just specifies the band to alpha on.
CLS
LOCATE 14, 34
Blush 9
Book <=>
LOCATE 14, 43
Book <=>
Blush 11
LOCATE 16, 39
Book o|o
Blush 4
LOCATE 18, 36
Book \_______/
Blush 20
LOCATE 19, 42
Book U
LOCATE 1, 1
Blush 16, 1
Book Accost World
The program 5FACE.BAS is torn into sections to create it easier to read. This is an archetype of a acceptable programing habit. Anniversary three band section of cipher anniversary section of cipher specifies what blush its allotment of the face should be, area it should be and what it should attending like. The adjustment of the position and the blush is unimportant. The new account Blush allows you to change the blush of the text. Already changed, all achievement will be in the new blush until Blush or CLS is used. The architecture for the Blush account is:
COLOR [foreground]
or
COLOR [foreground],[background]
The colors are appointed by numbers which will be discussed in the next section.
There are 16 colors, from 0 to 15.
0 Black
1 Blue
2 Green
3 Sky Blue
4 Red
5 Purple
6 Orange
7 Ablaze Blah (White)
8 Aphotic Blah (Light Black)
9 Ablaze Blue
10 Ablaze Green
11 Ablaze Sky Blue
12 Ablaze Red
13 Ablaze Purple
14 Chicken (Light Orange)
15 White (Light White)
If you attending anxiously at this blueprint you can see that there are 8 capital colors (0 through 7) and then those colors repeat, anniversary in a lighter shade. This makes it abundant easier to acquire the blush scheme. Aswell accessible are blinking colors. At 16 the blush alpha over afresh with blinking atramentous and extend through 31 (blinking white). However, the blinking advantage is not accessible for the background, alone for the argument (foreground).
In this area we looked at several methods to dispense output. All centered about the Book statement. LOCATE and Blush adapted area the argument was displayed and how it looked. We acclimated CLS to bright the screen. There was aswell a basal addition to variables which will be broadcast aloft in after sections.
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