for x in range(1,10):
for y in range(1,10):
if x<y:
print 10*x+y
for y in range(1,10):
if x<y:
print 10*x+y
2016-01-09
sum = 0
x = 0
while True:
x = x + 1
if x%2==0:
continue
if x > 100:
break
sum+=x
print sum
x = 0
while True:
x = x + 1
if x%2==0:
continue
if x > 100:
break
sum+=x
print sum
2016-01-09
sum = 0
x = 1
n = 1
while True:
sum+=x
x=x*2
if n>=20:
break
n+=1
print sum
x = 1
n = 1
while True:
sum+=x
x=x*2
if n>=20:
break
n+=1
print sum
2016-01-09
L = [75, 92, 59, 68]
sum = 0.0
for i in L:
sum+=i
print sum / 4
sum = 0.0
for i in L:
sum+=i
print sum / 4
2016-01-09
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop(2)
L.pop(2)
print L
或者
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop(3)
L.pop(2)
print L
或者
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop()
L.pop()
print L
或者
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop(-1)
L.pop(-1)
print L
其他还有很多……
L.pop(2)
L.pop(2)
print L
或者
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop(3)
L.pop(2)
print L
或者
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop()
L.pop()
print L
或者
L = ['Adam', 'Lisa', 'Paul', 'Bart']
L.pop(-1)
L.pop(-1)
print L
其他还有很多……
2016-01-09
d = {
'Adam': 95,
'Lisa': 85,
'Bart': 59,
}
d.insert('Paul': 75, len(d))
'Adam': 95,
'Lisa': 85,
'Bart': 59,
}
d.insert('Paul': 75, len(d))
2016-01-09
for x in range(1,9):
for y in range(0,10):
if x < y:
print x *10 + y
for y in range(0,10):
if x < y:
print x *10 + y
2016-01-09
最新回答 / 乔帮主
http://jingyan.baidu.com/article/7908e85c78c743af491ad261.html 你看下这个里面把,按照这个来安装就是了!
2016-01-08
sum = 0
x = 1
n = 1
while True:
if x > 20:
break
sum += pow(2, x-1)
x += 1
print sum
x = 1
n = 1
while True:
if x > 20:
break
sum += pow(2, x-1)
x += 1
print sum
2016-01-08