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fingerprint login system demonstration program
指纹登录系统演示程序-fingerprint login system demonstration program
- 2022-04-27 15:12:18下载
- 积分:1
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QT5 学习,基本对话框操作源代码
QT5 学习,基本对话框操作源代码,供新手学习用,包括:标准文件对话框,标准颜色对话框,标准字体对话框类,标准输入对话框类,消息对话框,自定义消息框等。
- 2022-01-31 20:59:50下载
- 积分:1
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Window ce 5.0 (EVC4.2)下的一个图片浏览器RC版本(需要改进),使用中NAND/pic文件加下需要有图片...
Window ce 5.0 (EVC4.2)下的一个图片浏览器RC版本(需要改进),使用中NAND/pic文件加下需要有图片-Window ce 5.0 (EVC4.2) a picture under the RC version of the browser (needs improvement), the use of NAND/pic documents the need for increases under the picture
- 2022-04-09 19:59:50下载
- 积分:1
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Skin VB6 source code form: a form to the procedures for beautiful skin
窗体换肤VB6源码:
给程序窗体换漂亮的皮肤-Skin VB6 source code form: a form to the procedures for beautiful skin
- 2022-06-21 10:33:25下载
- 积分:1
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多显示器显示,多显卡控制多显示器,完成一些多媒体功能。...
多显示器显示,多显卡控制多显示器,完成一些多媒体功能。-multi-monitor displays, and more control over graphics display, the completion of some multimedia functions.
- 2022-12-30 18:05:04下载
- 积分:1
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novice beginner, vb programming gradient background window!
新手初学,vb编程实现渐变的窗口背景-novice beginner, vb programming gradient background window!
- 2022-01-25 19:58:17下载
- 积分:1
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类似explorer.exe的显示所有路径和文件的程序
类似explorer.exe的显示所有路径和文件的程序-Explorer.exe similar path to the show all the procedures and documentation
- 2022-01-31 22:14:43下载
- 积分:1
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delphi精略也就是《Delphi 精要》也不知道好不好,不要见怪哟
delphi精略也就是《Delphi 精要》也不知道好不好,不要见怪哟-is "Delphi incisive" I do not know or not, do not mind yo!
- 2023-05-04 18:55:05下载
- 积分:1
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a good simulation of the Windows software included in the progress of the small...
一个不错的模拟Windows软件载入进度条的小程序-a good simulation of the Windows software included in the progress of the small programs
- 2023-04-22 18:25:03下载
- 积分:1
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人们在使用SQL时往往会陷入一个误区,即太关注于所得的结果是否正确,而忽略了不同的实现方法之间可能存在的 性能差异,这种性能差异在大型的或是复杂的数据库环境中(...
人们在使用SQL时往往会陷入一个误区,即太关注于所得的结果是否正确,而忽略了不同的实现方法之间可能存在的 性能差异,这种性能差异在大型的或是复杂的数据库环境中(如联机事务处理OLTP或决策支持系统DSS)中表现得尤为明 显。笔者在工作实践中发现,不良的SQL往往来自于不恰当的索引设计、不充份的连接条件和不可优化的where子句。在对 它们进行适当的优化后,其运行速度有了明显地提高!下面我将从这三个方面分别进行总结:-people in the use of SQL often fall into the trap, that is too focused on the findings is correct, and ignore a different method may exist between the performance differences, these differences in large or complex database environment (such as online transaction processing or decision support OLTP system DSS) has become even more obvious. In practice I found that the poor tend to SQL from inappropriate design of the index, not fully connected and non-optimal conditions where the phrase. On their proper optimization, and their operating speed has been improved! Now I will be three aspects of this summary :
- 2022-07-14 22:31:11下载
- 积分:1