d = {'Adam': 95, 'Lisa': 85, 'Bart': 59}
for key,value in d.items():
print (key,':',value)
for key,value in d.items():
print (key,':',value)
2017-03-23
d = { 'Adam': 95, 'Lisa': 85, 'Bart': 59, 'Paul': 74 }
sums=d.values()
avg=sum(sums)/len(sums)
print(avg)
sums=d.values()
avg=sum(sums)/len(sums)
print(avg)
2017-03-23
L = ['Adam', 'Lisa', 'Bart', 'Paul']
for index, name in zip(range(1,len(L)+1),L):
print index, '-', name.lower()
for index, name in zip(range(1,len(L)+1),L):
print index, '-', name.lower()
for x in ['1','2','3','4','5','6','7','8','9']:
for y in ['2','3','4','5','6','7','8','9']:
if y <= x:
continue
print x + y
试试这个
for y in ['2','3','4','5','6','7','8','9']:
if y <= x:
continue
print x + y
试试这个
2017-03-23
for x in ['1','2','3','4','5','6','7','8','9']:
for y in ['2','3','4','5','6','7','8','9']:
if y <= x:
continue
print x + y
试试这个
for y in ['2','3','4','5','6','7','8','9']:
if y <= x:
continue
print x + y
试试这个
2017-03-23
ten = 1;
while ten<10:
bit=ten+1
while bit<10:
print ten*10+bit
bit=bit+1
ten=ten+1
while ten<10:
bit=ten+1
while bit<10:
print ten*10+bit
bit=bit+1
ten=ten+1
2017-03-23
def average(*args):
sum=0.0
lens=len(args)
if lens==0:
return sum
for v in args:
sum+=v
return sum / lens
len 变量不能用 lens
print average()
print average(1, 2)
print average(1, 2, 2, 3, 4)
sum=0.0
lens=len(args)
if lens==0:
return sum
for v in args:
sum+=v
return sum / lens
len 变量不能用 lens
print average()
print average(1, 2)
print average(1, 2, 2, 3, 4)
2017-03-23
tds = [(name,score) for name, score in d.iteritems()]
print '<table border="1">'
print '<tr><th>Name</th><th>Score</th><tr>'
print '<tr><td>Lisa</td><td>85</td></tr>'
print '<tr><td>Adam</td><td>95</td></tr>'
print '<tr><td>Bart</td><td style="color:red">59</td></tr>'
print '\n'.join(tds)
print '<table border="1">'
print '<tr><th>Name</th><th>Score</th><tr>'
print '<tr><td>Lisa</td><td>85</td></tr>'
print '<tr><td>Adam</td><td>95</td></tr>'
print '<tr><td>Bart</td><td style="color:red">59</td></tr>'
print '\n'.join(tds)
2017-03-23
sum = 0
x = 1
n = 1
while True:
if n > 20:
break
sum = sum + x
x = x * 2
n = n + 1
print sum
x = 1
n = 1
while True:
if n > 20:
break
sum = sum + x
x = x * 2
n = n + 1
print sum
2017-03-23