單一字元

1. 範例：輸入一個字元。

   [dywang@dyw219 zzz]$ vim stdio1.c
   [dywang@dyw219 zzz]$ cat stdio1.c
   #include <stdio.h>
   
   main () {
   	char c;
   
   	printf( "Enter a character: ");
   	c = getchar( );
   	printf( "You entered: ");
   	putchar(c);
   	printf( "\n");
   }
   

2. 編譯

   [dywang@dyw219 zzz]$ gcc -o stdio1 stdio1.c
   

3. 執行結果

   [dywang@dyw219 zzz]$ ./stdio1
   Enter a character: A
   You entered: A