nodejs代码生成包含100个随机数的数组

好的，以下是生成包含100个随机数的数组的 nodejs 代码示例：

const arr = Array.from({ length: 100 }, () => Math.floor(Math.random() * 100));
console.log(arr);

希望可以帮到您！如果还有其他问题，请随时问我。

相关问题

mysql 单选 多选 统计_随机生成一份试卷，试卷的种类分为单选、多选、判断三种题型。nodejs6.0 mysql...

可以按照以下步骤实现：

1. 创建一个试卷模板，包含不同种类的题目数量、每个题目的分值和难度系数等信息。

2. 随机生成试卷，可以使用 Node.js 内置的 `Math.random()` 函数生成随机数，然后根据试卷模板中的信息，从数据库中随机抽取题目。

3. 统计试卷成绩，把用户的答案与正确答案进行比对，计算分值。

下面是一个示例代码：

const mysql = require('mysql');
const connection = mysql.createConnection({
  host: 'localhost',
  user: 'root',
  password: 'password',
  database: 'test'
});

// 试卷模板
const paperTemplate = {
  singleChoiceCount: 5,
  multipleChoiceCount: 5,
  judgementCount: 5,
  singleChoiceScore: 2,
  multipleChoiceScore: 4,
  judgementScore: 2,
  singleChoiceDifficulty: [1, 2, 3, 4, 5],
  multipleChoiceDifficulty: [1, 2, 3, 4, 5],
  judgementDifficulty: [1, 2, 3, 4, 5]
};

// 随机生成试卷
function generatePaper() {
  const paper = {
    singleChoice: [],
    multipleChoice: [],
    judgement: []
  };
  // 单选题
  for (let i = 0; i < paperTemplate.singleChoiceCount; i++) {
    const difficulty = paperTemplate.singleChoiceDifficulty[Math.floor(Math.random() * paperTemplate.singleChoiceDifficulty.length)];
    connection.query(`SELECT * FROM questions WHERE type='single' AND difficulty=${difficulty} ORDER BY RAND() LIMIT 1`, (error, results, fields) => {
      if (error) throw error;
      paper.singleChoice.push(results[0]);
    });
  }
  // 多选题
  for (let i = 0; i < paperTemplate.multipleChoiceCount; i++) {
    const difficulty = paperTemplate.multipleChoiceDifficulty[Math.floor(Math.random() * paperTemplate.multipleChoiceDifficulty.length)];
    connection.query(`SELECT * FROM questions WHERE type='multiple' AND difficulty=${difficulty} ORDER BY RAND() LIMIT 1`, (error, results, fields) => {
      if (error) throw error;
      paper.multipleChoice.push(results[0]);
    });
  }
  // 判断题
  for (let i = 0; i < paperTemplate.judgementCount; i++) {
    const difficulty = paperTemplate.judgementDifficulty[Math.floor(Math.random() * paperTemplate.judgementDifficulty.length)];
    connection.query(`SELECT * FROM questions WHERE type='judgement' AND difficulty=${difficulty} ORDER BY RAND() LIMIT 1`, (error, results, fields) => {
      if (error) throw error;
      paper.judgement.push(results[0]);
    });
  }
  return paper;
}

// 统计试卷成绩
function calculateScore(paper, answers) {
  let score = 0;
  // 单选题
  for (let i = 0; i < paper.singleChoice.length; i++) {
    if (answers[i] === paper.singleChoice[i].answer) {
      score += paperTemplate.singleChoiceScore;
    }
  }
  // 多选题
  for (let i = 0; i < paper.multipleChoice.length; i++) {
    if (answers[i + paper.singleChoice.length] === paper.multipleChoice[i].answer) {
      score += paperTemplate.multipleChoiceScore;
    }
  }
  // 判断题
  for (let i = 0; i < paper.judgement.length; i++) {
    if (answers[i + paper.singleChoice.length + paper.multipleChoice.length] === paper.judgement[i].answer) {
      score += paperTemplate.judgementScore;
    }
  }
  return score;
}

// 示例用法
const paper = generatePaper();
const answers = ['A', ['A', 'B', 'C'], 'T', 'F', ['A', 'B'], 'F', 'T', ['C', 'D'], 'A', 'B'];
const score = calculateScore(paper, answers);
console.log(score);

上述示例代码中，`generatePaper()` 函数会根据试卷模板从数据库中随机抽取题目，并返回一个包含所有题目的试卷对象。`calculateScore()` 函数接收一个试卷对象和用户的答案，返回用户的得分。示例用法中，我们手动构造了一个假的答案数组，然后计算得分并输出。实际使用时，应该由用户输入答案。