Created
July 8, 2020 07:42
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| class Investment(object): | |
| def __init__(self, us_dollar, fund, stock): | |
| self.us_dollar = us_dollar | |
| self.fund = fund | |
| self.stock = stock | |
| # convert unit: transfer us_dollar to RMB | |
| @staticmethod | |
| def convert_unit(us_dollar): | |
| print("converting us dollar to RMB") | |
| return us_dollar // 7 | |
| Investment.convert_unit(140) |
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