for x in [ 1,2,3,4,5,6,7,8,9]:
for y in [ 1,2,3,4,5,6,7,8,9]:
if x<y:
print '10x+y'
for y in [ 1,2,3,4,5,6,7,8,9]:
if x<y:
print '10x+y'
2017-03-06
for x in [ '1','2','3','4','5','6','7','8','9']:
for y in [ '1','2','3','4','5','6','7','8','9' ]:
if x<y:
print '10x+y'
for y in [ '1','2','3','4','5','6','7','8','9' ]:
if x<y:
print '10x+y'
2017-03-06
sum = 0
n = 0
while True:
sum=sum+2^n
n=n+1
if n>20:
break
print sum
n = 0
while True:
sum=sum+2^n
n=n+1
if n>20:
break
print sum
2017-03-06
sum = 0
x = 1
n = 1
while True:
if n > 20:
break
sum += x
x *= 2
n += 1
print sum
x = 1
n = 1
while True:
if n > 20:
break
sum += x
x *= 2
n += 1
print sum
2017-03-06
已采纳回答 / 不好好学习就吃不到西瓜
t = ('a', 'b', ('A', 'B'))#让里面的list变成tuple就好了print t反正让值固定下来就行了,很多的方法,理解原理就好,别拘束于一个地方
2017-03-06
print [int(str(x) + str(y) + str(z)) for x in range(1, 10) for y in range(0, 10) for z in range(1, 10) if x == z]
2017-03-06
print [int(str(x) + str(y) + str(z)) for x in range(1, 10) for y in range(1, 10) for z in range(1, 10) if x == z]
2017-03-06
print [int(str(x) + str(y) + str(z)) for x in range(0, 10) for y in range(0, 10) for z in range(0, 10) if x == z and x != 0]
2017-03-06