在商业领域,你见过没有签名的邮件吗?你不会看到一张这样的邮件。由纸装订的文件要书写签名这一要求是显而易见的。在这里不讨论这种文件。但电子文件又当如何? 自从三十年前我们利用了计算机之后,就产生了电子文件,在这种情况下要求对电子文件进行签名难道不实际吗? 到目前为止,我们仍然可以找出由于是由电子手段产生而没签名的文件。这样一来就找 Have you ever seen an unsigned message in the business world? You do not see such an email. The requirement to write a signature on paper bound is obvious. This document is not discussed here. But what about electronic documents? Since we used computers 30 years ago, electronic documents were produced. Is it not practical to require that electronic documents be signed? In so far we can still find out why It is a document produced by electronic means without signature. Look for it this way