数制转换问题，编写一个应用，接收用户输入的一个10进制数，然后分别把它转换为2进制、8进制和16进制数输出。-Number system conversion issues, the preparation of an application to receive user input of a 10-hexadecimal number, then it is converted to 2 M, 8 M and 16 M-ary number of the output.