从键盘输入一个二进制数(位数小于等于80)显示其应得带符号和无符号十进制数-keyboard input from a binary number (less than the median 80), showing their entitlement with symbols and unsigned decimal number
自己写的一个 Base64 编码解码工具,fcl 里已经有了,写这个主要是为了让大家了解 Base64 编码原理-His writing a Base64 encoding and decoding tools, fcl were already there, writing this mainly to let everyone understand the principles of Base64 Encoding