init blog
init blog
a “hello world” program
cpp program
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#include <iostream>
int main()
{
std::cout << "Hello, World!" << std::endl;
return 0;
}
python program
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print("Hello, World!")
Diagram
plantuml
demo plantuml
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```plantuml
@startuml
A --> B
@enduml
sequenceDiagram
participant A as a
participant B as b
A->>B : target
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```mermaid
sequenceDiagram
participant A as a
participant B as b
A->>B : target
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