class DonationRequest:
    def __init__(self, requester_name, purpose, amount):
        self.requester_name = requester_name
        self.purpose = purpose
        self.amount = amount
        self.donations = []
    
    def add_donation(self, donor_name, amount):
        self.donations.append((donor_name, amount))
        return f"感谢{donor_name}的捐赠！"
    
    def show_status(self):
        total = sum(d[1] for d in self.donations)
        progress = (total / self.amount) * 100
        return f"当前进度: {progress:.2f}% ({total}/{self.amount})"

# 示例用法
request = DonationRequest("社区图书馆", "购买新书", 5000)
print(request.add_donation("张三", 200))
print(request.add_donation("李四", 300))
print(request.show_status())
https://kg.qq.com/node/play?s=f3m6LLfYz0z4pfyj
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