March: 7393.83 yuan2020:+34,277.8 yuanThis year's profit:-17,640.13 yuan
December:Runze technology retreats to take profit and sell.May: -4260.08 yuan
July: -356.24 yuanMarch: 7393.83 yuanSeptember: 11,228.38 yuan
Strategy guide 12-14
Strategy guide