How i can add slot in calendar 

Can Calendar support slot or format function, that can make some tips in everyDate? Just like "Rain" in 1, "Sunny" in 2.

日历是否支持slot呢，我想通过slot或者foramt函数，使每个日子底下都能添加自定义文字。例如，1号“可预约”，2号“已满”等等。