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Hello,

What does " : " stands for in Dark Basic Pro ?

Where can I find listing of the operators and their meaning ?

Thanks,

It's like a line delimiter.

This:


Is the same as this:


But for statements like this:


You can use the colon to put multiple things on the same line and they will be treated as part of that originating statement.


Which is the same as:

In BASIC the : character is a break between statements. Allowing you to stack more than one statement on a line. There's generally a few statements that won't allow this depending on the Dialect of BASIC. But it's fairly universal.

What does this mean ? There is no if statement involved here.
All the 4 commands will be executed one by one for 0 to 7 ( 8 times ) ?

yep its the same as writting each command to a separate line

OK. Thank you folks for all the clarification.

As couple of side-notes,
The print statement makes unique use of the semi-colon, which acts differently to the colon, but they can be thought of in a similar way: while a colon says to run the next command on the same line, the semi-colon says to output the next print command on the same output line. If you want to output multiple strings on the same line you only need one print statement. Here are some examples:


Note 2
Colons are also used to define labels, these are like bookmarks in the program. Labels that end with a return statement are called subroutines, this is because they are routines that can be placed outside of the main code and called via the gosub command, when all the code inside the subroutine has been executed and the program comes across the return statement it will return to the place directly after the subroutine was called in the main code.

You can also jump straight to a label by using goto, although this command is rarely used any more since there are so many better ways to control the program flow, and making large jumps around program can quickly disorientate any reader trying to follow it, since goto does not return to where it was called.

Unfortunately, the use of the same symbol (the colon) as both a line delimiter and label definition creates a conflict between the two, and as such, labels require their own line. I.E. the following code will not work as desired: