Hello World
//引入输入输出需要的头文件
#include <stdio.h>
#include <stdlib.h>
//main方法是程序的入口
void main()
{
//格式化输入输出方法printf,用于在屏幕上打印指定的内容
printf("Hello World");
}About Hello World
For beginners, the Hello World program is definitely the first teacher of your learning career. why would you said this? Because when you're a difference of one letter is not entered this code in the editor, click compile, link, after running a display in the window Hello world, the hearts of excitement is second to none.
Why did you choose Hello world as the entry program for beginners? That is because of the following points:
-
Small but complete
-
The main header file included in a C program, the main function of the program entry, and the statement. Helloworld simple implementation of the program on the screen output
Hello World!function
Simple enough
- If a person who is first exposed to a program to see a complex structure or more than ten lines of program code, it will discourage many people at first, even if a newcomer has enough patience to chew this hard bun, the final result It also greatly affected his desire to learn. Have a sense of accomplishment
- A novice memorizes this code almost effortlessly, and then basically has a general understanding of the structure of the program, and can change the output string by himself, such as his name and so on.