python for range

In Python 2.x, range generates the entire sequence when called, while xrange is a generator - it produces values on demand, not all up fromt. You will often see xrange is used much more frequently than range. This is for one reason only - resource usage.

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Python是一款簡單強大又好用的動態語言,在國外已經流行了十幾年。Python擁有更高的時效性,可以讓您的開發週期更短,並讓您的生產力提升。 簡單易學,並有內建的各種現成的模組 ...

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