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xiaoqiang202010 committed Dec 31, 2023
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15 changes: 15 additions & 0 deletions _posts/2023/09/2023-09-11-qt-study.md
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---
layout: post
title: "qt安装步骤"
keywords: ["c++"]
description: "qt安装步骤"
category: "c++"
tags: ["c++"]
---

## 安装步骤
1. [进入官方在线安装下载页](https://download.qt.io/official_releases/online_installers/)
2. 使用阿里的qt镜像安装
```
qt-unified-windows-x64-4.6.1-online.exe --mirror https://mirrors.aliyun.com/qt
```
45 changes: 45 additions & 0 deletions _posts/2023/12/2023-12-31-android-studio.md
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---
layout: post
title: "mysql导入excel空格问题"
keywords: ["android-studio"]
description: "android-studio导入excel空格问题"
category: "android-studio"
tags: ["android-studio"]
---

## 安卓环境搭建常见问题汇总
### 1. Gradle: 下载 fastutil-8.4.0.jar... 好慢
> 如果你在使用 Gradle 下载 fastutil-8.4.0.jar 文件时速度较慢,可以尝试以下解决方法:
更换镜像源:Gradle 使用的默认镜像源可能在某些地区速度较慢。你可以尝试更改 Gradle 的镜像源为一个速度更快的镜像源。在项目根目录下的 build.gradle 文件中添加以下代码:
```
groovyCopy Code
repositories {
mavenCentral() // 默认镜像源
// 使用阿里云镜像源(加速国内下载)
maven { url 'https://maven.aliyun.com/repository/central' }
}
````
然后重新同步 Gradle。
使用本地缓存:如果你之前已经成功下载过 fastutil-8.4.0.jar 文件,Gradle 会将它缓存在本地。你可以查找 Gradle 的本地缓存目录,并将已经下载好的文件拷贝到该目录下。这样 Gradle 在下载时会直接使用本地缓存的文件,而不是重新下载。
使用代理下载:如果你在使用 Gradle 时需要通过代理连接到互联网,确保 Gradle 的代理配置正确。在项目根目录下的 gradle.properties 文件中,添加以下代理配置(根据你的实际代理设置进行修改):
### 2. gradle不同版本下载太慢 国内镜像
> 参考资料:https://blog.csdn.net/youngwah292/article/details/110734407
### 3. 自带模拟器连不上网
> 直接 使用第三方如雷电模拟器
> 参考资料:https://blog.csdn.net/weixin_43157543/article/details/104589328
### 4. 抓包 Fiddler+雷电模拟器进行APP抓包
> 参考: https://www.cnblogs.com/chenyablog/p/12773990.html
### 5. Android studio中文汉化教程
> 参考: https://blog.csdn.net/weixin_42019349/article/details/135039506
### 6. Android Studio获取SHA1
> 参考:https://blog.csdn.net/sjjsbsbbs/article/details/122887057
47 changes: 47 additions & 0 deletions _posts/2023/12/2023-12-31-mysql-import-exel copy.md
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---
layout: post
title: "mysql导入excel空格问题"
keywords: ["mysql"]
description: "mysql导入excel空格问题"
category: "mysql"
tags: ["mysql"]
---

## msyql导入excel空格问题
### 去除左右空格方式一:
```
UPDATE `all` SET `iccid` = TRIM(`iccid`), `access_number` = TRIM(`access_number`);
```

### 方式二 解决mysql去掉字段空格:中间空格,左侧空格,右侧空格,两端空格,水平制表符(tab键或者\t)空格,换行键(\n)空格,回车键(Enter键)空格
```
update
`all`
set
iccid = replace(
replace(replace(iccid, char(9), ''), char(10), ''),
char(13),
''
),access_number = replace(
replace(replace(access_number, char(9), ''), char(10), ''),
char(13),
''
)
;
update
`iccid`
set
iccid = replace(
replace(replace(iccid, char(9), ''), char(10), ''),
char(13),
''
);
```


### 参考资料
https://blog.csdn.net/lvoelife/article/details/133674285#

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