货币是用作交易媒介、储藏价值和记账单位的一种工具,是专门在物资与服务交换中充当等价物的特殊商品。历史上不同地区曾有过不同的商品充当过货币,后来货币商品逐渐过渡为金银等贵金属。中国古代货币主要有贝币、铜铸币、铜钱、金银和谷帛货币、钞币等。铸币是指铸成一定大小形状,具有一定重量和面额价值,充当法定流通手段的金属货币,古代铸币材料以铜为主,以后相继出现金银铸币。据最近的考 Money is a tool used as a medium of exchange, storage value and accounting units, and is a special commodity that serves exclusively as an equivalent in the exchange of goods and services. In different parts of history, different commodities used to be used as over-currency. Later, the monetary goods gradually turned into gold, silver and other precious metals. Ancient Chinese currency mainly shellfish coins, copper coins, copper coins, gold, silver and grain silk currency, notes and so on. Mintage is cast into a certain size and shape, with a certain weight and denomination value, acts as a legal means of circulation of the metal currency, the ancient coins to copper-based materials, have emerged after the gold and silver coins. According to the recent test