Java:
```
System.out.println("Hello World!");
```
C:
```
printf("Hello World!\n");
```
C++:
```
std::cout << “Hello World!” << std::endl;
```
C#:
```
Console.WriteLine(“Hello World!”) ;
```
Python:
```
print “Hello World!”
```
Java:
```
System.out.println("Hello World!");
```
C:
```
printf("Hello World!\n");
```
C++:
```
std::cout << “Hello World!” << std::endl;
```
C#:
```
Console.WriteLine(“Hello World!”) ;
```
Python:
```
print “Hello World!”
```
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1. hello world print('Hello World!')`--># 输出：Hello World!...
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程序员眼里最伟大的词组: hello world! hello world! hello world! hello...
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本文标题：Hello World!
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