| | 1 | = The ''for'' Loop = |
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| | 2 | |
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| | 3 | ''Part of'' TutorialFundamentals |
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| | 4 | |
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| | 5 | == Description == |
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| | 6 | |
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| | 7 | How to do the same thing over and over again. |
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| | 8 | |
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| | 9 | == Example == |
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| | 10 | |
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| | 11 | Most people don't like to do monotonous tasks over and over again (especially not a lazy programmer). That's where the '''for''' loop comes in. You could write a program like this: |
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| | 12 | {{{ |
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| | 13 | write("1\n"); |
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| | 14 | write("2\n"); |
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| | 15 | write("3\n"); |
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| | 16 | write("4\n"); |
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| | 17 | ... |
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| | 18 | }}} |
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| | 19 | but that's no fun. The '''for''' statement allows the programmer step back and just say to the computer, "count from 1 to 10, and print each number." |
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| | 20 | |
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| | 21 | ==== Example Code ==== |
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| | 22 | {{{ |
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| | 23 | #!d |
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| | 24 | import std.stdio; |
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| | 25 | |
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| | 26 | void main() |
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| | 27 | { |
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| | 28 | for (int i = 1; i <= 10; i++) |
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| | 29 | writeln(i); |
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| | 30 | } |
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| | 31 | }}} |
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| | 32 | |
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| | 33 | == Output == |
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| | 34 | |
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| | 35 | {{{ |
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| | 36 | 1 |
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| | 37 | 2 |
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| | 38 | 3 |
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| | 39 | 4 |
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| | 40 | 5 |
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| | 41 | 6 |
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| | 42 | 7 |
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| | 43 | 8 |
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| | 44 | 9 |
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| | 45 | 10 |
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| | 46 | }}} |
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| | 47 | |
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| | 48 | == Source == |
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| | 49 | |
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| | 50 | Partially based on: [http://jcc_7.tripod.com/d/tutor/for_loop.html The for Statement] |
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