Description: Keyboard buffer residual information problems scanf (" c" , & c) sentence does not receive characters, what causes it? We use printf (" c = d \ n" , c) int represented by the C Enable printf (" c = d \ n" , c) this one, see scanf () function is assigned to C What in the end, the result is c = 10, ASCII value of 10 is what? Newline is \ n. Yes, we look at every hit " Enter" key, the keyboard buffer sent a " carriage return" (\ r), a " newline" (\ n), where \ r is scanf ( ) function handles out (let so that it ^ _ ^), and \ n is scanf () function " error" to assign a c. Solution: can two scanf () function then add fflush (stdin) , as well as add getch (), getchar () can, but depending on the specific scanf () statement added that, there is not analyzed, the reader to explore it. But add fflush (stdin) matter what conditions are feasible.
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键盘缓冲区残余信息问题.txt
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