include "stdio.h"\r\nvoid main()\r\n{\r\nint a,b;\r\nprintf("请输入2个八进制数：");\r\nscanf("%o %o",&a,&b);\r\nprintf("a+b = %d(十进制)\n",a+b);\r\nprintf("a+b = %x(十六进制)\n",a+b);\r\n} ...