基金历史收益(货币型,短期理财债券型)

获取某只货币型基金或短期理财债券型基金的历史收益情况，包含了每万份收益，七日年化收益率等信息。收录了2005年以来的历史数据，数据更新频率为日。不输入日期则默认获取近一年以来的历史数据。

Obtains the historical return data of a specific money market fund or short-term wealth management bond fund, including metrics such as the daily income per 10,000 fund shares and the 7-day annualized yield. The dataset includes historical data dating back to 2005 with daily updates. If no specific date is provided, the historical data of the most recent one year will be returned by default.