Comparison of Three Loop Structures-Southeast University C++He Jieyue
Comparison of Three Loop Structures
Loop Control Variable Initialization:
- While and do-while: Initial value is generally assigned before entering the loop.
- For: Usually assigned by expression 1 in the loop statement itself.
Loop Control Variable Changes:
- While and do-while: Changes occur within the loop body.
- For: Changes occur in expression 3 of the loop statement.
Condition Check for Loop Execution:
- While and for: Conditions are checked before the loop body, meaning the loop body may not execute at all.
- Do-while: Condition is checked after the loop body, ensuring the loop body executes at least once.
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