...

TF time cycle

When TF is true, the second loop is executed, so it is right to execute the loop unconditionally first regardless of whether the condition is true or not.

Step 2 do

...

Loop until TF

Until means that the condition is met before TF is true (that is, false), that is, as long as the condition is false, the loop will continue, so it is correct.

I'll tell you the details, and you can judge for yourself. "A Do loop can only use one loop keyword" is correct. Then, a DO-LOOP loop can indeed write multiple EXIT statement codes, but only one sentence is actually used (that is, effectively executed), thinking that once the EXIT statement is executed, the whole process will be skipped (the smallest is EXIT DO). So judge for yourself, the answer is nothing.

4. Arithmetic expressions are mathematical expressions, and mathematical symbols, assignment variables, functions with return values and so on can be used in programming. Arithmetic expressions follow the symbolic precedence operation in mathematics.

For example:

1+ 1 is an arithmetic expression.

x=5

1+x is also an arithmetic expression.

Function addnum (in num as integer) as integer

AddNum = INNum * 2

End function

AddNum+3-5* 10 is still an arithmetic expression.

-

I said so much, you just have to answer me one question:

Which department are you a student of? Department of Software Engineering? What grade?