def average(*args):
sum = 0.0
l = len(args)
if l == 0:
return 0.0
else:
for x in args:
sum += x
return sum/len(args)
sum = 0.0
l = len(args)
if l == 0:
return 0.0
else:
for x in args:
sum += x
return sum/len(args)
2017-02-06
#次数极大的重复运算时(如循环嵌套),更推荐直接布尔运算,效率更高
sum = 0
x = 0
while True:
x = x + 1
if x > 100:
break
if not x % 2: #用not在这里运行效率会高些
continue
sum = sum + x
print sum
sum = 0
x = 0
while True:
x = x + 1
if x > 100:
break
if not x % 2: #用not在这里运行效率会高些
continue
sum = sum + x
print sum
2017-02-06
sum = 0
x = 0
while True:
x = x + 1
if x > 100:
break
if not x % 2:
continue
sum = sum + x
print sum
x = 0
while True:
x = x + 1
if x > 100:
break
if not x % 2:
continue
sum = sum + x
print sum
2017-02-06
N=100
x=0
sum=0
while x<N:
if x%2!=0:
sum=sum+x
x=x+1
print sum
我写的这个也可以 ,大家可以看看奥
x=0
sum=0
while x<N:
if x%2!=0:
sum=sum+x
x=x+1
print sum
我写的这个也可以 ,大家可以看看奥
2017-02-06