Python-基本運算( 十三 ) 列表生成、判斷參數

生成列表
print [x+5 for x in range(0,5)]
[5, 6, 7, 8, 9]

print [x*x for x in range(0,5)]
[0, 1, 4, 9, 16]

print [(x-1)*(x) for x in range(2,101,2)]

判斷參數
>>> print isinstance(456, str);
False
>>> print isinstance("555", str);
True

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