A knife is a short weapon with only one long blade. The original shape of the knife is very close to the graupel. By the Spring and Autumn Period and the Warring States Period, the shape of Dao had changed greatly. In the Han dynasty, Dao gradually developed into one of the main battle weapons of infantry, and many different forms of long-handled Dao appeared. There are few ancient copper knives in the world, and they are all light and thin, with the thickest part being only 0.35 cm. Their shapes can be roughly divided into short-handled head knives, long-edged knives, flat-edged knives and curved-edged knives. At the same time, it generally refers to tools that can be used for cutting, cutting, cutting and chopping. Together with knives, it is also called tableware.
Bonzi is also called "stick", which was called "stick" in ancient times. Although the name is different, it is actually the same thing. One of the martial arts instruments in China is a long weapon. The length is about 1.3-2.6 meters (stick, seven-foot stick, nine-foot stick), and some are as long as 4 meters (stick, also known as "Shu"). The cross section is generally circular, and the thickness can be grasped by one hand. The stick is a bladeless weapon and is known as the "first of many battles". Walking stick has a long history, which is one of the main production tools in primitive society and one of the earliest weapons used in war. Sticks are melee weapons, and their attack range is larger than knives and guns. Since ancient times, there has been a saying that "a stick sweeps a large area". But sticks mainly cause blunt injuries and abrasions, and their lethality is less than that of knives and guns.