a1 = 1;
d = 3;
n = 100;
an = a1 + (n - 1)*d;
s = (n*(a1 + an))/2;
print s;
d = 3;
n = 100;
an = a1 + (n - 1)*d;
s = (n*(a1 + an))/2;
print s;
2016-07-17
L = ['Adam', 'Lisa', 'Bart', 'Paul']
for index, name in zip(range(1,len(L)+1),L):#range(1,len(L)+1)=[1,2,3,4] 是一个list,而L是另一个list,zip()将两个list组成[(1,'Adam'),(2,'Lisa'),(3,'Bart'),(4,'Paul')]这一组合,然后在这个组合中提取index和name
print index, '-', name
for index, name in zip(range(1,len(L)+1),L):#range(1,len(L)+1)=[1,2,3,4] 是一个list,而L是另一个list,zip()将两个list组成[(1,'Adam'),(2,'Lisa'),(3,'Bart'),(4,'Paul')]这一组合,然后在这个组合中提取index和name
print index, '-', name
x1 = 1
d = 3
n = 100
x100 = range(1,1+d*n,d)
s = sum(x100)
print s
d = 3
n = 100
x100 = range(1,1+d*n,d)
s = sum(x100)
print s
2016-07-17
d = {
'Adam': 95,
'Lisa': 85,
'Bart': 59
}
print 'Adam',d.get('Adam')
print 'Lisa',d.get('Lisa')
print 'Bart',d.get('Bart')
'Adam': 95,
'Lisa': 85,
'Bart': 59
}
print 'Adam',d.get('Adam')
print 'Lisa',d.get('Lisa')
print 'Bart',d.get('Bart')
2016-07-17
for x in range(1,9):
for y in range(0,9):
if x < y:
print x,y
for y in range(0,9):
if x < y:
print x,y
2016-07-17
不加括号也可以
print 45678+0X12fd2
print 'Learn Python in imooc.'
print 100<99
print 0xff==100
可能加上看起来跟清楚吧
print 45678+0X12fd2
print 'Learn Python in imooc.'
print 100<99
print 0xff==100
可能加上看起来跟清楚吧
2016-07-17