大小单双倍投顺口溜

简介：When Jianlu attacked fortresses, they always used Han military flags to attack first, consuming the ammunition and strength of the Ming army defending the city, while the elite Jianlu cavalry hid outside the range of the cannons. If they are defeated, they will not suffer losses. If the Han army wins and the camp is breached, they can launch a charge and defeat the Ming army in one fell swoop.