#include stdio.hint main( void ){int count;for (count = 14; count 128; )putchar(count++);

#include stdio.h#define MAXSTRING 80int main( void ){char message[] = this is a test;

#include stdio.hint main(void){int ctr;for( ctr = 65; ctr 91; ctr++ )printf(%c, ctr );

#include stdio.hint main( void ){unsigned char mychar;/* Must be unsigned for extended ASCII */

#include stdio.h#include conio.hint main( void ){int ch;while ((ch = getch()) != \\n)

#include stdio.hint main( void ){int ch;while ((ch = getchar()) != \\n)putchar(ch);

#include stdio.h#define MAX 80int main( void ){char ch, buffer[MAX+1];int x = 0;while ((ch = getchar()) != \\n x MAX)

#include stdio.h#include conio.hint main( void ){int ch;while ((ch = getche()) != \\n)

#include stdio.hint main(void){printf(Please enter a character:\\n);printf(The expression \\getchar() != EOF\\ is %d.\\n, getchar() != EOF);

#include stdio.hint main(void){printf(The value of EOF is %d.\\n, EOF);return 0;//

#include stdio.hint main( void ){char c1 = a;char c2 = 90;/* Print variable c1 as a character, then as a number */

#include stdio.hint main(){char key;puts(Type your favorite keyboard character:);

#include stdio.hint main(){char key;printf(Press a key on your keyboard:);key=getchar();

#include stdio.hint main(){char key;puts(Type your favorite keyboard character:);

#include stdio.hint main(){char num;printf(Enter a number from 0 to 9:\\n);num = getchar();

getch()不会将字符回显到屏幕上。getche()函数与getch()相同，但键是回显的。#include stdio.h

对于存储有符号整数的每种类型，都有一个存储无符号整数的相应类型。无符号类型占用与签名类型相同的内存量。每个无符号类型名称都是带有前缀为unsigned关键字的带签名类型名称。下表显示了可以使用的基本无符号整数

有五种基本类型的变量可以存储有符号的整数值，因此可以存储正值和负值。键入整数变量类型的名称。

要声明并初始化long类型变量Big_Number，可以这样写:#include stdio.hint main(void)

添加代码到源文件的第一件事是main函数。main函数是程序的入口点。括号及其内容称为代码块。