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IT修真院·坑乎 | Java(后端),CSS(前端),JavaScript(前端),PM(产品经理),UI(交互设计),QA(测试),Android(安卓APP),iOS(苹果APP),OP(运维),Python(后端)日常在线问答学习平台

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小程序的生命周期是如何运作的，跟页面栈又有什么关系

1

1

小程序语言基础

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

该问题已被官方收录

使用时间选择插件不能获取到时间

1

1

angular model angular 插件

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<input type="date" ng-model = "startAt">

该问题已被官方收录

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<template>
    <div class="artcle">
        <header>
            <div class="row">
                <div>
                    <span>标题</span>
                    <input type="text" v-model="title">
                </div>
                <div>
                    <span>创建者</span>
                    <input type="text" v-model="author">
                </div>
                <div>
                    <span>创建时间</span>
                    <input type="date">
                </div>
                <div>
                    <span>-</span>
                    <input type="date">
                </div>
            </div>
            <div class="row">
                <div>
                    <span>状态</span>
                    <select class="in"> 
                        <option v-for="item in statusList"
                        :key="item.id"
                        >{{item.label}}</option>
                    </select>
                </div>
                <div>
                    <span>类型</span>
                    <select class="in">
                        <option v-for="item in typeList"
                        :key="item.id">
                        {{item.label}}
                        </option>
                    </select>
                </div>
            </div>
            <div>
                <button>清空</button>
                <button>搜索</button>
            </div>
        </header>
        <main>
            <div class="container">
                <div class="strong">Article管理</div>
                <div>
                    <button>保存排序</button>
                    <button v-on:click="add">+新增</button>
                </div>
            </div>
            <div class="list-table">
                <table class="list-box">
                    <tr class="table-header">
                        <th class="width1">序号</th>
                        <th class="width1">图片</th>
                        <th class="width1">标题</th>
                        <th class="width1">类型</th>
                        <th class="width1">创建者</th>
                        <th class="width1">创建时间</th>
                        <th class="width1">修改时间</th>
                        <th class="width1">状态</th>
                        <th class="width2">操作</th>
                    </tr>
                    <tr v-if="tableData==undefined">
                        <th class="noData">暂无数据</th>
                    </tr>
                    <tr class="table-content" v-for="(item, index) in tableData" :key="index">
                            <td class="width1">{{index|indexFilter}}</td>
                            <td class="width1 img-box">
                                <img class="img" :src="item.img">
                            </td>
                            <td class="width1">{{item.title}}</td>
                            <td class="width1">{{item.type|typeFilter}}</td>
                            <td class="width1">{{item.author}}</td>
                            <td class="width1">{{item.createAt|timeFilter}}</td>
                            <td class="width1">{{item.updateAt|timeFilter}}</td>
                            <td class="width1">{{item.status|statusFilter}}</td>
                            <td class="width2">
                                <button class="bnt" type="success">{{item.status|updateStatus}}</button>
                                <button class="bnt" type="primary">编辑</button>
                                <button class="bnt" type="danger">删除</button>
                            </td>
                        </tr>
                </table>
            </div>
        </main>
        <footer>
            <div class="containerr">
                <span>共{{pagecount}}页</span>
                <button>首页</button>
                <button><i class="left"></i></button>
                <button v-for="(item,index) in pageArray" 
                    :key = "index" 
                    @click="articleList(index+1)">{{index+1}}</button>
                <button>
                    <i class="right"></i>
                </button>
                <button>末页</button>
            </div>
        </footer>
    </div>
</template>
<script>
import {article} from "@/http/article/article.js"; //接口
    export default {
        name: "articlee",
    data() {
    return {
      tableData: 'undefined', //数据列表
      pagecount: "", //总页数
      pageArray: Array(),//页数数组
      currentPage: 1, 
      title: "",
      author: "",
      //状态列表
      statusList: [
        {
          id: 1,
          label: "全部"
        },
        {
          id: 2,
          label: "草稿"
        },
        {
          id: 3,
          label: "上线"
        }
      ],
      typeList: [
          {
              id: 1,
              label : "全部"
          },
          {
              id: 2,
              label : "行业大图"
          },
          {
              id: 3,
              label : "找职位banner"
          },
          {
              id: 4,
              label : "找精英banner"
          },
          {
              id: 5,
              label : "首页banner"
          }
      ]
    };
  },
  methods:{
      articleList(page,size){
          console.log(page)
          let params = {
              page: page,
              size: 10
          }
          console.log(params)
       article.getArticleList(params)
        .then(res => {
            let list = res.data.data.articleList; //数据列表
            console.log(list)
            if (list.length == 0) {
            this.tableData = undefined;
          }else{
              this.tableData = list;
          }
          let page = Math.ceil(res.data.data.total/10); //页数
          this.pagecount = page;   //赋值给总页数 
          console.log(page);
          this.pageArray = Array(Math.ceil(res.data.data.total/10));
        })
    },

    pageChang(val) {
        this.page
    },
    add(){
         //新增按钮
      this.$router.push({
        path: "/Home/articleAdd",
        query: {
          status: "add"
        }
      }) //跳转科目管理页面为新增
    }
  },
  created(){
      console.log(this.page)
  this.articleList()
  },
  filters: {
    indexFilter: function(index) {
      return index + 1;
    },
    typeFilter: function(type) {
      if (type == 0) {
        return "首页banner";
      } else if (type == 1) {
        return "找职位banner";
      } else if (type == 2) {
        return "找精英banner";
      } else if (type == 3) {
        return "行业大图";
      }
    },
    statusFilter: function(status) {
      if (status == 1) {
        return "草稿";
      } else if (status == 2) {
        return "上线";
      }
    },
    updateStatus: function(status) {
      if (status == 1) {
        return "上线";
      } else if (status == 2) {
        return "下线";
      }
    }
  }
}
</script>

该问题已被官方收录

把杀手和平民转换为数组打乱，控制台打印出来的不会重置

2

1

js基础

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

// 点击顶部返回按钮返回到游戏主页
function start() {
    // 点击返回弹出提示窗口
    if(confirm("是否要退出游戏，并返回到主页面")){     
        location.href = "start.html";//点击确定返回到主页面
     }else{
        return false;//点击取消停留在当前页面
    }
}


//获取输入玩家input节点
var quantity = document.getElementById("content");
// 获取杀手input节点
var Killer = document.getElementById("Killer");
// 获取平民input节点
var civilian = document.getElementById("civilian");


// 利用oninput输入事件触发玩家input属性
quantity.oninput = function () {
    var x=/\D/g;//定义正则，非数字规则
    this.value=this.value.replace(x,"");// 符合正则规则替换为空值
    gain(this.value);// 获取当前对象输入的值
}

var arr=[];


// 把获取的值赋给Killer和civilian两个input
function gain(value) {
    Killer.value = Math.round(value - (value / 2 + value / 6 + value / 24.1));
    civilian.value = Math.round(value / 2 + value / 6 + value / 24.1);

    // 当玩家值小于4或大于18赋给Killer和civilian值为空
    if (value< 4 || value > 18) {
        Killer.value = "";
        civilian.value = "";
    }else{
       

    // 当玩家值小于4或大于18把Killer和civilian以组数形式输出
        for (var i=0;i<Killer.value;i++){
            arr.push("杀手");//输出杀手的数量push到数组
        }
        for (var i=0;i<civilian.value;i++){
            arr.push("平民");//输出平民的数量push到数组
        }
    }
}
gain(quantity.value);//自运行

var array=arr;//访问全局变量arr

// // 点击button按钮判断条件
function button() {

    // 获取输入玩家input的value的值
    var count = document.getElementById("content").value;

    // 判断条件符合弹出提示窗口,否则进入下一个页面
    if (count < 4 || count > 18) {
        confirm("请输入正确的玩家数量。");
    } else {

        // 洗牌算法
        if(array){
            for (var i = array.length - 1; i > 0; i--) {
            // 打乱数组的玩家
            var j = Math.floor(Math.random() * (i + 1));
            var temp = array[i];
            array[i] = array[j];
            array[j] = temp;    
        }

      
        console.log(array);
        }  
        // location.href = "check.html";//进入下一个页面
    }
    return false;//冒泡事件
}


// 键盘事件，onkeydown事件当用户按下按键触发
document.onkeydown = function (a) {//a是按键信息对象以函数参数的形式传递进来
   
     //取出按键信息中的按键代码(大部分浏览器通过keyCode属性获取按键代码，但少部分浏览器使用的却是charCode
    var code = a.charCode || a.keyCode;  

        //13为回车键的编码
    if (code === 13) {   
        button();//调用button函数
    }
}

该问题已被官方收录

杀完人投票完后信息不能出现在正确的位置

0

1

控制流程语句节点操作

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码



  var contentlist = [];
    for (var h = 0; h < days; h++) {
        contentlist.push(
            '<div class="box">' +
            '<div class="top" id="day">第' + (h + 1) + '天</div>' +
            '<div class="mid">' +
            '<div class="right" id="menu">' +
            '<p class="step1" id="tokill">杀手杀人</p>' +
            '<div class="eer"></div>' +
            '<p class="step2" id="towords">亡灵发表遗言</p>' +
            '<p class="step3" id="tospeak">玩家依次发言</p>' +
            '<p class="step4" id="tovote">全民投票</p>' +
            '<div class="eef"></div>' +
            '<div class="moon"></div>' +
            '<div class="sun"></div>' +
            '</div>' +
            '</div>' +
            '</div>'
        );
    }
    ;
    $("main").html(contentlist.join(""));


   var p;
    for (p = 0; p < death.length; p++) {

        if (death[p].type === 'akiller') {
            console.log(p);
            $('.eer').eq(p).text('昨夜' + (death[p].num) + '号被杀死,' + '身份是' + (death[p].id));
            $('.step1:last').removeClass('step');
            $('.step1:last').addClass('death');

        } else if (death[p].type === 'avoter') {
            console.log(p);
            $('.eef').eq(p-1).text('昨夜' + (death[p].num) + '号被投死,' + '身份是' + (death[p].id));
            $('.step1').css('background', 'gray');
            $('.step2').css('background', 'gray');
            $('.step3').css('background', 'gray');
            $('.step4').css('background', 'gray');
            $('.step1:last').css('background', '#24a7c6');
            $('.step2:last').css('background', '#24a7c6');
            $('.step3:last').css('background', '#24a7c6');
            $('.step4:last').css('background', '#24a7c6');

        } else {
            return false;
        }
    }

该问题已被官方收录

懒加载如何同时加载多个文件

1

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

var app = angular.module('app', ['ui.router','oc.lazyLoad','ui.bootstrap','ngAnimate','ngTouch','ngMessages','angularFileUpload']);
app.config(function ($stateProvider,$urlRouterProvider,$controllerProvider){
  app.controller = $controllerProvider.register;
  $urlRouterProvider.otherwise('/login');
  $stateProvider
  //登录页面
  .state('login',{
    url:'/login',
    templateUrl:'./html/login.html',
    controller:"loginctrl",
    resolve:{
      deps:["$ocLazyLoad",function($ocLazyLoad){
        return $ocLazyLoad.load("./js/login.js");
      }]
    }
  })

  // 后台主页
  .state('dashboard',{
    url:'/dashboard',
    templateUrl:'./html/dashboard.html',
    controller:"AccordionCtrl",
    resolve:{
      deps:["$ocLazyLoad",function($ocLazyLoad){
        return $ocLazyLoad.load("./js/dashboard.js");
      }]
    }
  })

  // 后台列表页
  .state('dashboard.list',{
    //url传参
    url:'/list?page&size&title&author&startAt&endAt&status&type',
    templateUrl:'./html/list.html',
    controller:"listctrl",
    resolve:{
      deps:["$ocLazyLoad",function($ocLazyLoad){
        return $ocLazyLoad.load("./js/list.js");
      }]
    }
  })
  
  //后台详情页
  .state('dashboard.detail',{
    url:'/detail?id',
    templateUrl:'./html/detail.html',
    controller:"detailctrl",
    resolve:{
      deps:["$ocLazyLoad",function($ocLazyLoad){
        return $ocLazyLoad.load("./js/detail.js");
      }]
    }
  });
});

该问题已被官方收录

获取不到value值.

1

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

var btn = document.getElementsByClassName("btn");

var uers = document.getElementsByClassName("phone");
var ff = uers.value;
console.log(ff)
var password = document.getElementsByClassName("lock").value;
console.log(password)
uers.value == "dfd"
    if( uers.value == "") {
        alert("请输入用户名");
    }
    else if (password.value == "") {
        alert("请输入密码");
    }

该问题已被官方收录

IOS系统的Safari浏览器下Meta设置user-scalable=no无效

0

1

其他

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">

该问题已被官方收录

ajax请求网关超时

1

1

Ajax

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function login() {
    var name = document.getElementById('name');
    var password = document.getElementById('password');
    var none = document.getElementById('hint');
    console.log(name.value);
    console.log(password.value);
    var xhr = new XMLHttpRequest();

    xhr.open('Post', '/carrots-admin-ajax/a/login/', true);
    xhr.setRequestHeader('Content-Type', 'application/json');
    xhr.send("name="+name.value+"&pwd="+password.value);
    xhr.onreadystatechange = function () {
        if(xhr.readyState === 4){
            if(xhr.status === 200){
                console.log(xhr.responseText);
            }else {
                none.innerHTML = "无此用户";
            }
        }
    };
    xhr.onerror = function (e) {
        console.error(xhr.statusText);
    };
}
//键盘事件,按enter触发login()事件
document.onkeydown = function (ev) {
    var e = event || window.event || arguments.callee.caller.arguments[0];
    if(e&&e.keyCode===13){
        login();
    }
};

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在项目中，我们经常会看到package.json文件，这个文件有什么作用？

0

1

其他

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

{
  "name": "vue",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build":"cross-env NODE_ENV=production webpack --config webpack.config.js  --mode production",
    "dev":"cross-env NODE_ENV=development webpack-dev-server --config webpack.config.js --mode development"
  },
  "author": "",
  "license": "ISC",
  "description": ""
}

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