货币基金债券信用评级

获取货币基金基金在年报、半年报中披露的债券信用评级，分短期和长期。收录了2009年以来的历史数据，数据更新频率为半年度。获取方式支持：输入一个或多个secID/ticker，并输入beginDate和endDate以及报告类型，可以查询到指定货币基金，在一段时间内的债券信用评级情况。

This dataset acquires short-term and long-term bond credit ratings disclosed in annual and semi-annual reports of money market funds. It includes historical data since 2009, with a semi-annual update cycle. Supported query methods: Input one or more secID/ticker symbols, together with beginDate, endDate and report type, to query the bond credit rating information of specified money market funds over a given time period.