据《史记》载:西汉文帝时,名将周勃之子周亚夫率军驻细柳营抗击匈奴。一次,文帝外出劳军,到了其他军营,一听说天子驾到,均不加戒备,开门迎送。但到了细柳营后,那儿的官兵却个个披甲执锐,张弓搭箭,把文帝挡在了营外。有人说是皇帝来了,把 According to the “Historical Records”: When the Western Han Wendi, the son of Zhou Bo’s son, Zhou Yafu led the army to Xiliu in the battle against the Xiongnu. At one time, Wendi went out to labor camps and went to other barracks. When he heard that the emperor had arrived, he did not raise his guard and opened the door to welcome them. However, at the time of the Yeliu camp, the officers and soldiers there were all armed with sharp armor and bowed arrows to block Wendi from the camp. Some people say that the emperor came and put