add suanfa

Jenkinsfile

@@ -35,16 +35,16 @@ pipeline {
                 echo '🚀 开始部署前端文件...'  
                 script {
                     // 确保目标目录存在
-                    sh 'mkdir -p /app/www' 
+                    sh 'mkdir -p /app/suanfa/www'
                     // 清空旧文件
-                    sh 'rm -rf /app/www/*' 
+                    sh 'rm -rf /app/suanfa/www/*' 
                     // 复制新构建的 dist 文件到挂载目录
-                    sh 'cp -r dist/* /app/www/'
+                    sh 'cp -r dist/* /app/suanfa/www/'
                     
                     echo '✅ 前端文件部署到 Web 服务目录完成！'
                     
                     // 可选：列出部署的文件以便验证
-                    sh 'ls -la /app/www/ | head -10'
+                    sh 'ls -la /app/suanfa/www/ | head -10'
                 } 
             }
         }

src/__tests__/mathUtils.test.js

@@ -0,0 +1,102 @@
+import { describe, it, expect } from 'vitest'
+import { factorial, isPrime, fibonacci, gcd, lcm } from '../utils/mathUtils.js'
+
+describe('factorial', () => {
+  it('should return 1 for 0!', () => {
+    expect(factorial(0)).toBe(1)
+  })
+
+  it('should return 1 for 1!', () => {
+    expect(factorial(1)).toBe(1)
+  })
+
+  it('should calculate 5! = 120', () => {
+    expect(factorial(5)).toBe(120)
+  })
+
+  it('should calculate 10! = 3628800', () => {
+    expect(factorial(10)).toBe(3628800)
+  })
+
+  it('should throw error for negative numbers', () => {
+    expect(() => factorial(-1)).toThrow('负数没有阶乘')
+  })
+})
+
+describe('isPrime', () => {
+  it('should return false for numbers <= 1', () => {
+    expect(isPrime(0)).toBe(false)
+    expect(isPrime(1)).toBe(false)
+  })
+
+  it('should return true for 2', () => {
+    expect(isPrime(2)).toBe(true)
+  })
+
+  it('should return true for prime numbers', () => {
+    expect(isPrime(7)).toBe(true)
+    expect(isPrime(13)).toBe(true)
+    expect(isPrime(97)).toBe(true)
+  })
+
+  it('should return false for composite numbers', () => {
+    expect(isPrime(4)).toBe(false)
+    expect(isPrime(15)).toBe(false)
+    expect(isPrime(100)).toBe(false)
+  })
+})
+
+describe('fibonacci', () => {
+  it('should return 0 for fib(0)', () => {
+    expect(fibonacci(0)).toBe(0)
+  })
+
+  it('should return 1 for fib(1)', () => {
+    expect(fibonacci(1)).toBe(1)
+  })
+
+  it('should calculate fib(10) = 55', () => {
+    expect(fibonacci(10)).toBe(55)
+  })
+
+  it('should calculate fib(20) = 6765', () => {
+    expect(fibonacci(20)).toBe(6765)
+  })
+
+  it('should throw error for negative input', () => {
+    expect(() => fibonacci(-5)).toThrow('下标不能为负数')
+  })
+})
+
+describe('gcd', () => {
+  it('should return 6 for gcd(18, 24)', () => {
+    expect(gcd(18, 24)).toBe(6)
+  })
+
+  it('should return 1 for coprime numbers', () => {
+    expect(gcd(7, 13)).toBe(1)
+  })
+
+  it('should handle zero', () => {
+    expect(gcd(0, 5)).toBe(5)
+    expect(gcd(5, 0)).toBe(5)
+  })
+
+  it('should handle negative numbers', () => {
+    expect(gcd(-18, 24)).toBe(6)
+  })
+})
+
+describe('lcm', () => {
+  it('should calculate lcm(4, 6) = 12', () => {
+    expect(lcm(4, 6)).toBe(12)
+  })
+
+  it('should calculate lcm(7, 13) = 91', () => {
+    expect(lcm(7, 13)).toBe(91)
+  })
+
+  it('should return 0 if either number is 0', () => {
+    expect(lcm(0, 5)).toBe(0)
+  })
+})

src/utils/mathUtils.js

@@ -0,0 +1,79 @@
+/**
+ * 基础数学工具函数 - 算法教学辅助
+ */
+
+/**
+ * 计算阶乘 (n!)
+ * @param {number} n - 非负整数
+ * @returns {number} n 的阶乘
+ */
+export function factorial(n) {
+  if (n < 0) throw new Error('负数没有阶乘')
+  if (n === 0 || n === 1) return 1
+  let result = 1
+  for (let i = 2; i <= n; i++) {
+    result *= i
+  }
+  return result
+}
+
+/**
+ * 判断一个数是否为质数
+ * @param {number} n - 正整数
+ * @returns {boolean}
+ */
+export function isPrime(n) {
+  if (n <= 1) return false
+  if (n <= 3) return true
+  if (n % 2 === 0 || n % 3 === 0) return false
+  for (let i = 5; i * i <= n; i += 6) {
+    if (n % i === 0 || n % (i + 2) === 0) return false
+  }
+  return true
+}
+
+/**
+ * 计算斐波那契数列的第 n 项 (迭代法)
+ * @param {number} n - 非负整数
+ * @returns {number} 第 n 个斐波那契数
+ */
+export function fibonacci(n) {
+  if (n < 0) throw new Error('下标不能为负数')
+  if (n === 0) return 0
+  if (n === 1) return 1
+  let a = 0, b = 1
+  for (let i = 2; i <= n; i++) {
+    const tmp = a + b
+    a = b
+    b = tmp
+  }
+  return b
+}
+
+/**
+ * 求两个数的最大公约数 (辗转相除法)
+ * @param {number} a
+ * @param {number} b
+ * @returns {number} 最大公约数
+ */
+export function gcd(a, b) {
+  a = Math.abs(a)
+  b = Math.abs(b)
+  while (b !== 0) {
+    const tmp = b
+    b = a % b
+    a = tmp
+  }
+  return a
+}
+
+/**
+ * 求两个数的最小公倍数
+ * @param {number} a
+ * @param {number} b
+ * @returns {number} 最小公倍数
+ */
+export function lcm(a, b) {
+  if (a === 0 || b === 0) return 0
+  return Math.abs(a * b) / gcd(a, b)
+}