getch()、getche()和getchar()之间的区别(国外英语资料).docVIP

getch()、getche()和getchar()之间的区别(国外英语资料) The difference between getch (), getche () and getchar () Told my wife several times about getch () usage, the wife is not long memory, here I sum up, it is also for the wife. First, dont forget to use getch (conio.h) must be introduced into the header file, before learning the C language, we always love in the program added to the end of it, use it to achieve the program to run pause exit effect. If not this sentence, in the TC2.0 environment, we use Ctrl+F9 to compile and run the program to run after a return to the TC environment, we dont to see the results, then to look at the results, we need to press Alt+F5 to return to the DOS environment to see the result, it is very troublesome. If at the end of the program with a getch (); statement, we can see the results of this step will save DOS, because the program run does not exit, but finally stopped in the program screen, press any key to return to the TC environment to. Lets take a look at what are the effects of getch (), getch () is actually an input command, like we use cin when the program will stop your input, and CIN is different, getch () function is to receive a character from the keyboard, and not the character display that is to say, you press a button on the screen, it is not what you press, and continue to run the code behind, so we can use it to achieve the press any key to continue effect in C++, which is encountered in the program getch (); this statement, it will suspend the program down, you press any key, it received the keys to continue the code behind. You may ask why we are in C++ there is no getch in the program at the end (plus), explained that the software is always up-to-date, no good place is certainly correct, (getch) and at the end of the program, it is not assigned to any variable, so it is in this place is totally rubbish. Code, and independent of program. C++ to take this into account, so do not exit in each time the program is run, but the s