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--- | ||
layout: post | ||
title: "qt安装步骤" | ||
keywords: ["c++"] | ||
description: "qt安装步骤" | ||
category: "c++" | ||
tags: ["c++"] | ||
--- | ||
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## 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 | ||
``` |
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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"] | ||
--- | ||
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## 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 |
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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"] | ||
--- | ||
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## 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`); | ||
``` | ||
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### 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), | ||
'' | ||
); | ||
``` | ||
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### 参考资料 | ||
https://blog.csdn.net/lvoelife/article/details/133674285# |