第十一章 更复杂的星球快
注意三重循环的控制
numBlocks = int(raw_input("How many blocks of stars do you want ?"))
for block in range(1,numBlocks + 1):
print "block = ",block
for line in range(1,block*2):
for star in range (1,(block + line ) * 2 ):
print "*",
print "line = ",line,"star = ",star