iterating throught a list 遍历列表
iterating over a list 遍历列表
有两个方法
1.for item in list:
print item
2.for i in range(len(list)):
print list[i]
1.定义 total,变量 numbers,it will be a list
2.在function中，创建一个变量result and set it to zero
3.遍历the numbers list
4.for each number,add it to result
5.finally,return result
n =[3,5,7]
def total(numbers):
result = 0
for item in range(len(numbers)):
result = result + numbers[item]
return result
n =[3,5,7]
def total(numbers):
result = 0
for item in numbers:
result = re
