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九宫格只能竖着排列或横向排列

6

2

块级元素九宫格

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.swag{
  padding-left:31%;
  padding-bottom: 31%;
  margin:1%;
  border-radius: 20%;
  background: orange;
}

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9宫格无法居中，

1

2

九宫格

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

 #news{
          
          text-align:center;
          margin:20px;
          padding:20px;
          width:100vw;
          height:100vw;
          background:orange;
          
         
          }   
      
      
     #part1{
        
          
        width:25vw;
      height:25vw;
      background: orange;
       margin: 1vw;
      padding: 1vw;    
      float:left;
       border-radius:30px;
     }

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什么是文档流，什么是脱离文档流

1

1

css概念

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<style>
        .box{
            float:left;
            width:200px;
            height:200px;
            background:#000;
        }
        .box{
            position:absolute;
            top:0;
            left:0;
            width:200px;
            height:200px;
            background:yellow;
        }
    </style>
</head>
<body>
<div class="box1"></div>
<div class="box"></div>

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Spring 报错：Error creating bean with name

1

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

package com.keymen.dao;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import com.keymen.annotation.MyBatisDAO;
import com.keymen.entity.User;

@MyBatisDAO
public interface UserDao {

    @Autowired
    User selectByPrimaryKey(Integer id);
    @Autowired
    List<User> queryAllUser();
    @Autowired
    public User findUserByUsername(String username);
    @Autowired(required=true)
    public Integer getCountOfRecord();

}

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使用display:inline-block属性做九宫格不能三格一行

2

1

布局块级元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>flextest1</title>
    <style type="text/css">
    *{ 
        margin: 0; 
        padding: 0; 
    } 
    
    
    .box{
        display: inline-block;
        padding-left: 31.33%; 
        padding-bottom: 31.33%; 
        background-color: orange;
        margin: 1%;
        border-radius: 10%;
    }
    </style>
</head>
<body>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
</body>
</html>

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mybatis中使用大于号或小于号报错

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

tee.F_EndDay <= dateadd(DAY,0,CONVERT (VARCHAR(100), GETDATE(), 23))

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Spring 整合 MyBatis，Mapper注入失败

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:META-INF/config/mybatis/sqlmap.xml" />
        <property name="mapperLocations"
                  value="classpath:com/liu/dao/mapping/*.xml" />
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage"
                  value="com.liu.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

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用浏览器模仿手机访问网页显示正常。用真实的手机访问页面，盒子的背景图片会发生偏移

1

1

chrome开发者工具

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.firstone,
.finallyone{
    width:12px;
    height:12px;
    padding:0;
    background-image:url("calendar2.png");
    background-repeat:no-repeat;
}
.firstone{
    background-position:0 -36px;
}
.finallyone{
    background-position:0 -60px;
}
p{
    margin:0;
    padding:0;
}
.first,
.finally p{
    line-height:14px;
    color:#999;
    white-space: nowrap;
    overflow:hidden;
    text-overflow: ellipsis;
}
.first{
    background-position:left -42px;
    margin-bottom:0.5rem;
    padding-left:0;
}
.second {
    font-size:1.6rem;
    margin-bottom:0.5rem;
}
.second p{
    padding-left:2rem;
    line-height:1.5rem;
    white-space: nowrap;
    overflow:hidden;
    text-overflow: ellipsis;
}
.finally{
    background-position:3px -74px;
}
.main {
    height:7rem;
    border-bottom:1px solid #ccc;
    padding:1rem;
}
.salary{
    display:flex;
    align-items:center;
    justify-content:flex-end;
    height:5rem;
}
.salary p{
    color:#f00;
    padding-right:0.5rem;
    margin:0;
    font-size:1.8rem;
    white-space: nowrap;
}
.salary a{
    display:inline-block;
    width:1rem;
    height:1.5rem;
    background-image:url("矢量智能对象拷贝.png");
    background-repeat:no-repeat;
    background-size:0.8rem;
}

<div class="container-fluid headerr">
    <div class="row header">
        <div class="col-xs-offset-3 col-xs-6 button">
            <button  type="button" class="btn btn-default1">找雇主</button
            ><button type="button" class="btn btn-default2">找护工</button>
        </div>
        <div class="col-xs-3 map">
            <button type="button" class="btn btn-link"></button>
        </div>
    </div>
</div>

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css的选择器概念很模糊，不理解

2

1

css概念

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.swap{}

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九宫格，写出来九个格子之后一排4个是什么原因？

3

1

九宫格

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

一行4个格子

去第页

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