d() // 6.ptu=\r(\rtime_t nowtime;\rstruct tm*timeinfo;\rtime(&nowtime);\rtimeinfo=localtime(&nowtime);\rprintf(H B% s\n * * ,asctime(timeinfo));\rprint();\r}\rvoid main().\rint i;\rint num;\r//struct student *p = NULL;\rwhile(l)\r(\rmenu();\rscanf(H %dH,&num);\rif(num>=l&&num<=7)\r{\rswitch(num)\r(\rcase l:addDate();break; ~k=\r=\rcase 2:deletDate();break; ~lm==\rcase 3:modifyDate();break; ~no=\r=\rcase 4:check();break; ~pq==\rcase 5:print();break; ~rs==\rcase 6:dailyRecord();break; ~p\rtu=.\rcase 7:exit(0); ~vw=\r)\relse\r|\rprintf("XY|a\ n”);\r)