用python写一个美元，英镑，日元等外币与人民币汇转换的计算器率

以下是一个简单的汇率转换计算器，可以将美元、英镑、日元和欧元转换为人民币：

def currency_converter(amount, currency):
    """Converts foreign currency to CNY based on current exchange rates"""
    if currency == "USD":
        rate = 6.46  # current USD to CNY exchange rate
        result = amount * rate
        return result
    elif currency == "GBP":
        rate = 8.96  # current GBP to CNY exchange rate
        result = amount * rate
        return result
    elif currency == "JPY":
        rate = 0.059  # current JPY to CNY exchange rate
        result = amount * rate
        return result
    elif currency == "EUR":
        rate = 7.66  # current EUR to CNY exchange rate
        result = amount * rate
        return result
    else:
        print("Invalid currency type")

# Example usage:
print(currency_converter(100, "USD"))  # Output: 646.0
print(currency_converter(50, "GBP"))  # Output: 448.0
print(currency_converter(5000, "JPY"))  # Output: 295.0
print(currency_converter(200, "EUR"))  # Output: 1532.0

请注意，这个计算器的汇率是基于当前市场汇率，而这些汇率会随着时间和市场变化而变化。因此，此代码可能需要定期更新以反映最新的汇率。