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gbt1988 / PythonToWork

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报错：UnboundLocalError: local variable 'gas_tank' referenced before assignment #17

Open gbt1988 opened 4 years ago

gbt1988 commented 4 years ago

原因是在对属性 gas_tank修改时忘记了传入实例引用self即没有关联、指配实例 def fill_gas_tank(self,gas): self.gas_tank += gas print('gas tank filled ' + str(self.gas_tank) + 'L')