as enum, weekday {sun=7, mon=l, Tue, wend, Thur, Fri, sat};\rthen the sun value is 7, the mon value is 1, the Tue value is\r2, the wend value is 3, the Thur value is 4, the FRI value is\r5, and the SAT value is 6\rThe use of Turbo C\rMenu activation: F10\rMenu switching: the left and right arrow keys are switched\rbetween different menus, and the upper and lower key switches.\rbetween different menus of the same menu.\rLoad files: two ways: 1. find the location of the source file\rand drag it directly to the Turbo C shortcut; 2. F3\rRunning program: ctrl+F9\rSee the program running results: alt+F5\rEnter edit status: menu Edit\rSave: F2\rInsert status toggle: Insert key