一次使用多个类并接受所有输入时出错

class InputHandler:
    def __init__(self, data):
        self.data = data

    def process_data(self):
        if not isinstance(self.data, dict):
            raise ValueError("Input data must be a dictionary")
        return self.data

class DataProcessor:
    def __init__(self, input_handler):
        self.input_handler = input_handler

    def process(self):
        processed_data = self.input_handler.process_data()
        # 进一步处理数据
        return processed_data

# 示例使用
try:
    input_data = {"key1": "value1", "key2": "value2"}
    input_handler = InputHandler(input_data)
    data_processor = DataProcessor(input_handler)
    result = data_processor.process()
    print("Processed data:", result)
except ValueError as e:
    print("Error:", e)