Demo:用有微软的cryptoAPI ＣＳＰ加密ＡＰＩ函数，对文件（Ｆile）进行Encrypt和Decrypt.产生数字签名．对使用CryptEncrypt（）等函数是一个很好的例子，程序测试通过．-Demo : Microsoft's cryptoAPI CSP Cryptographic API function, the document (File) Encrypt and Decrypt. Creating a digital signature. The use Cryp

File Encryption The ENCRYPT sample is a console application that encrypts files. Files encrypted with this sample can be later decrypted with the DECRYPT sample. Note that the INITUSER sample (or equivalent) must be run prior to runnin

java课的小实验，内容是Create/Delete a directory. Enter a specified directory. List the files and directories in the current directory (you do not have to expand any sub-directory). Rename/delete a specified file. Copy a specified file to another direc