Python基础篇【一】

条件判断

if b >= a and b <= c:
        print "b is between a and c"
if not (b < a or b > c):
        print "b is still between a and c"

你还可以用elif语句检验多重条件:

if a == '+':
        op = PLUS
elif a == '-':
        op = MINUS
elif a == '*':
        op = MULTIPLY
else:
        raise RuntimeError, "Unknown operator"

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