檢視单据的原始碼

[[File:单据.jpg|缩略图|[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%8D%95%E6%8D%AE%20%20%20%E6%90%9C%E7%8B%90&step_word=&hs=0&pn=0&spn=0&di=82720&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=2&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=-1&cs=3551020680%2C2493834269&os=3035488455%2C2008833346&simid=3430370140%2C349857599&adpicid=0&lpn=0&ln=1716&fr=&fmq=1619869124117_R&fm=result&ic=&s=undefined&hd=&latest=&copyright=&se=&sme=&tab=0&width=&height=&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fimg.mp.itc.cn%2Fupload%2F20170325%2Faca3e0a0febe4edcb68359992fad01e5_th.jpeg%26refer%3Dhttp%3A%2F%2Fimg.mp.itc.cn%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1622461143%26t%3D379e998b455d392d204959efc578ba59&fromurl=ippr_z2C%24qAzdH3FAzdH3F4p_z%26e3Bf5i7_z%26e3Bv54AzdH3Fsjw6gtg2AzdH3FrAzdH3F8nad0m0n0_mc9lcm&gsm=1&rpstart=0&rpnum=0&islist=&querylist=&force=undefined 原图链接][https://www.sohu.com/a/130276737_654956 来自搜狐]]]
'''单据'''，是在经济业务发生时所取得或填制的、载明交易、事项实际情况的书面证明，它是进行会计核算的原始资料和重要依据。 
办理货物的交付和货款的支付的一种依据。单据可以表明出口商是否履约，履约的程度。进口商品以单据作为提取货物的货权凭证，有了单据，就表明有了货物。