在Java中添加數字

Question

我想合計數字。

（java.numbers）

Answer 1

可以用切片

a = ("jim", [2,3,4,6]) 
sum(a[1][:-1])    only will work if the number in order, else need to use sorted 

演示：

>>> a=("jim", [2,3,4,6]) 
>>> a[1] 
[2, 3, 4, 6] 
>>> a[1][:-1] 
[2, 3, 4] 
>>> sum(a[1][:-1])  # sum will give sum of element in list 
9 
>>> print a[0],sum(a[1][:-1]) 
jim 9 

功能：

>>> def my_function(*a):  # *a is called splat operator, can catch any number of argument in tuple 
...  return a[0],sum(sorted(a[1][:-1]))  #sorted will sort the list, so that largest number goes at end of list, so we can exclude it 
... 
>>> my_function("jim", [2,3,4,6]) 
('jim', 9) 

Answer 2

下面是一些代碼，會做什麼你正在尋找。

l = ("jim", [2,3,4,6]) 
def totalAndDisplay(l): 
    l[1].sort() 
    print l[0],sum(l[1][:-1])