Exercise 33: While Loops

while用起来不如for安全。

i = 0
numbers = []
while i < 6:
　　print "At the top i is %d" % i
　　numbers.append(i)
　　i = i + 1
　　print "Numbers now: ", numbers print "At the bottom i is %d" % i
　　print "The numbers: "
for num in numbers:
　　print num