Lua learning notes --- selection, cyclic statements, lua learning notes --- statements

Lua learning notes --- selection, cyclic statements, lua learning notes --- statements

Note: parentheses can be removed.

2> if condition then branch 1 else branch 2 end

3> if condition 1 then branch 1 elseif condition 2 then branch 2 end

2. Loop statements

1> while LOOP

Note: No auto-subtraction, auto-Addition
2> for Loop
Form: for initial value, final value, step do branch end
The step is optional. If there is no step, the default value is 1;

Note: I starts from 0 and Adds 1 each time until I = 4 and runs print five times. The three parameters (expressions) IN THE for loop are calculated once before the loop, it does not run in every loop. However, local variables in the for loop can only be seen internally.

3> repeat ...... Until statement
Form: repeat branch until Condition

4> break Out Loop