PROGRAMMING:hello,world
#####Task description:
Write a program to output a line of text: Hello, world.
Note: "Hello, world" program refers to the computer program that outputs the string of "Hello, world" on the computer screen.
This routine is widely used in the C program language by Brian Kernighan and Dennis M. Ritchie.
#####Input format:
This program does not require input
#####Output format:
Output a line of text: Hello, world
#####Input example:
```in
```
#####Output example:
```out
hello,world
```
#####Title Source
This topic is a necessary topic for many network evaluation platforms, which is directly adapted from openjudge platform,
Source Title website: http://noi.openjudge.cn/ch0101/01/
answer：If there is no answer, please comment
Write a program to output a line of text: Hello, world.
Note: "Hello, world" program refers to the computer program that outputs the string of "Hello, world" on the computer screen.
This routine is widely used in the C program language by Brian Kernighan and Dennis M. Ritchie.
#####Input format:
This program does not require input
#####Output format:
Output a line of text: Hello, world
#####Input example:
```in
```
#####Output example:
```out
hello,world
```
#####Title Source
This topic is a necessary topic for many network evaluation platforms, which is directly adapted from openjudge platform,
Source Title website: http://noi.openjudge.cn/ch0101/01/
answer：If there is no answer, please comment