在中国古代众多的金属短兵器中,以刀、剑的历史最为久远。刀和剑的形状各有差异,最重要的一个区别就在于刀是单侧刃,而剑则是双侧刃。据目前已知的考古发现来看,青铜刀应以属于仰韶时代晚期甘肃马家窑文化和马厂文化发现者时代 In ancient China many metal short weapons, the sword, the history of the most ancient. The difference between the shape of the sword and the sword, the most important difference is that the knife is a single-edged sword, while the sword is a double-edged sword. According to the currently known archaeological findings, the bronze knife should belong to the late Yangshao Gansu Majiayao culture and Ma factory culture discoverer era