#include stdio.hvoid my_function(void);/* C function prototyping */int main(void){printf(main.\\n);

#include stdio.hvoid functionA(void);void functionB(void);int main(void){functionA();/*fromwww.yi i bai.com*/

#include stdio.hint main(void){const float INCHES_PER_FEET = 12;float height;char name[40];printf(What is your name?: );

用双引号将其打印将其打印在20个字符宽的字段中，整个字段用引号括起，名称在字段的右端。在20字符宽的字段的左端打印它，整个字段用引号括起来。将其打印在比名称宽三个字符的字段中。

#include stdio.hint main(void){// printf(a a\\n);printf(a \\n a \\n);

#include stdio.hint main(){ char cResponse = \\0; printf(\\na\\tTurn the AC on\\n);

switch 不使用 break 语句：#include stdio.h int main(){ int iResponse = 0; printf(\\n1\\tSports\\n);

#include stdio.hint main(void) {int total;int cats;int dogs;int ponies;int others;cats = 4;dogs = 3;

#include stdio.hint main (void){int sum;//fromw w w. yiib ai . comsum = 50 + 25;printf (The sum of 50 and 25 is %i\\n, sum);

#include stdio.hint main (void){int value1, value2, sum;value1 = 50;/*ww w.yIi ba i. com*/value2 = 25;

#include stdio.hint main()/* from w ww.yi ba I.c om*/{int planets = 8;int friends = 6;int potterBooks = 7;

要求用户输入浮点，整数并将其打印在屏幕上，以下是代码的实现:#include stdio.h

#include stdio.hint main (void){printf (tutorial from book 2s.c om.\\n);printf (from book2s.com.\\n);

#include stdio.hint main (void){printf (Testing...\\n..1\\n...2\\n....3\\n);return 0;//fromwww.y iiba i .co m

#include stdio.h#include string.h// for strlen() prototype#define DENSITY 62.4// human density in lbs per cu ft

单分子水的质量约为3.0×10克。一夸脱水约950克。#include stdio.hint main(void)

#include stdio.h#include math.h#defineMAX_INTEREST6#defineMAX_PERIOD10int main(){int interest;

#include stdio.h#include ctype.hint main(void){int ch;unsigned long uct = 0;unsigned long lct = 0;

此过程称为回显输入。它使用while循环，在遇到#字符时终止。#include stdio.h

精度修饰符在最小字段宽度修饰符之后设置。它由一个句点后跟一个整数组成。其确切含义取决于应用它的数据类型。