L = ['adam', 'lisa', 'Paul', 'Bart']
L.pop(-1)
L.pop(-1)
print L
L.pop(-1)
L.pop(-1)
print L
2016-12-12
for x in range(1,10):
for y in range(1,10):
if x < y:
print (x*10+y)
for y in range(1,10):
if x < y:
print (x*10+y)
2016-12-12
L = range (1,10)
print[a*100+b*10+c for a in L for b in range (0,10) for c in L if a == c]
print[a*100+b*10+c for a in L for b in range (0,10) for c in L if a == c]
2016-12-12
sum = 0
x = 1
n = 1
while True:
if n > 20:
break
sum = sum + x
x = x * 2
n = n + 1
print sum
python 对缩进的要求真严格,希望2小时内搞定这个。
x = 1
n = 1
while True:
if n > 20:
break
sum = sum + x
x = x * 2
n = n + 1
print sum
python 对缩进的要求真严格,希望2小时内搞定这个。
2016-12-12