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题解 | #字符函数正则匹配2#

select id, comment from comment_detail where comment regexp '^(是|求)';

2024-11-22

0 97

题解 | #字符函数正则匹配1#

select id, comment from comment_detail where comment regexp '是|试|报名' order by id;

2024-11-22

0 88

题解 | #求最小公倍数#

import java.util.*; public class Main { public static void main(String[] args) { Scanner console = new Scanner(System.in); int m ...

2024-11-20

0 47

题解 | #统计输入正数个数#

import java.util.*; public class Main { public static void main(String[] args) { int count = 0; Scanner scanner = new Scanner(Sys...

2024-11-20

0 58

题解 | #数列求和#

public class Main { public static void main(String[] args) { //write your code here........ long sum = 0; String init = ...

2024-11-20

0 49

题解 | #设置文字颜色#

[].forEach.call(document.querySelectorAll('p'), p => p.style.color = 'red')

2023-01-15

0 337

题解 | #判断是否符合指定格式#

function matchesPattern(str) { return /^(\d{3}-){2}\d{4}$/.test(str) }

2023-01-15

0 297

题解 | #属性遍历#

function iterate(obj) { return Object.keys(obj).map(key => `${key}: ${obj[key]}`) }

2023-01-15

0 326

题解 | #颜色字符串转换#

抄的，但是改进了 function rgb2hex(sRGB) { // 找出每一组，然后替换16进制 let newSRGB = sRGB.replace(/\s+/g, "") let regexp = /^rgb\(([01]\d{0,2}|2[0-5]{...

2023-01-15

0 335

题解 | #观察者模式#

class Observerd { constructor(name) { this.name = name this.state = '走路' this.observerSet = new Set() } // 用于保存观察者们 setObserver(observer) ...

2023-01-15

0 409