Question

Revenue = [400000000,10000000,10000000000,10000000]
s1 = []

for x in Revenue:
    message = (','.join(['{:,.0f}'.format(x)]).split())
    s1.append(message)
print(s1)

The output I am getting is something like this [['400,000,000'], ['10,000,000'], ['10,000,000,000'], ['10,000,000']] and I  want it should be like this -> [400,000,000, 10,000,000, 10,000,000,000, 10,000,000]

有人可以帮我吗，我是python新手

Answer 1

如果您的目标只是添加逗号，则由于' '会成为str，因此您会被Revenue = [400000000,10000000,10000000000,10000000] l = ['{:,}'.format(i) for i in Revenue] # ['400,000,000', '10,000,000', '10,000,000,000', '10,000,000']所困扰，但是您可以使用更简单的列表理解

quotes

您还可以将列表解压缩为变量，然后在不使用v, w, x, y = l print(v) # 400,000,000的情况下打印每个变量

print

您可以print(*l) # 400,000,000 10,000,000 10,000,000,000 10,000,000拆箱清单，但这只会输出

l = []
for i in Revenue:
    l.append('{:,}'.format(i))

扩展循环：

var xScale = d3.scalePoint()
  .domain(dataset.map(d => d.name)) // input is an array of names
  .range([0, width]); // output

Answer 2

我不确定您为什么想要显示的输出，因为它很难阅读，但是这里是制作方法：

>>> Revenue = [400000000,10000000,10000000000,10000000]
>>> def revenue_formatted(rev):
...     return "[" + ", ".join("{:,d}".format(n) for n in rev) + "]"
...
>>> print(revenue_formatted(Revenue))
[400,000,000, 10,000,000, 10,000,000,000, 10,000,000]

如何不使用'[]'和''将字符串转换为列表

2 个答案: