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问题描述
while:
You can get the same output with for and while loops:
While:
$i = 0; while ($i <= 10){ print $i."\n"; $i++; };For:
for ($i = 0; $i <= 10; $i++){ print $i."\n"; }But which one is faster?
解决方案That clearly depends on the particular implementation of the interpreter/compiler of the specific language.
That said, theoretically, any sane implementation is likely to be able to implement one in terms of the other if it was faster so the difference should be negligible at most.
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