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App Inventor 2 怎么修改app图标？ · App Inventor 2 中文网
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设置图标
在默认屏幕Screen1的属性“图标”中修改，如图：
点击？，可以查看属性的帮助，“更多信息”可跳转中文文档页面：
镂空效果
可以使用透明背景的png图片作为图标...
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本贴是论坛每日签到系统在每天的第一位签到者签到时所自动生成的,如果您还未签到,请点此进行签到的操作. 我在 2025-08-09 08:19 完成签到,是今天第一个签到的用户,获得随机奖励 小红花 10,另外我还额外获得了 小红花 10.我今天...
Change column type from string to float in Pandas
... data type you can give your datatype .what do you want like str,float,int etc.
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How to find the width of a div using vanilla JavaScript?
...r the assigned width (ignoring padding, margin and so on) you could use.
getComputedStyle(element).width; //returns value in px like "727.7px"
getComputedStyle allows you to access all styles of that elements. For example: padding, paddingLeft, margin, border-top-left-radius and so on.
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What is an alternative to execfile in Python 3?
...s to the screen a lot of information it was not asked to print ('builtins' etc in Anaconda Python 3). Is there some way to turn this off so that only the information which I output with print() gets visualized?
– John Donn
Jan 8 '17 at 12:00
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How does BLAS get such extreme performance?
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Most arguments to the second question -- assembler, splitting into blocks etc. (but not the less than N^3 algorithms, they are really overdeveloped) -- play a role. But the low velocity of your algorithm is caused essentially by matrix size and the unfortunate arrangement of the three nested loops....
MFC Telnet Application（mfc telnet 端口，代码实现、不调用telnet.exe） ...
...s. You may use it for text mode Internet protocols (SMTP, POP, HTTP, WHOIS etc.) for sending, retrieving emails, whois queries, and so on. The application also allows opening ports on local computers for incoming connections.
Background
You need an understanding of Internet protocols to be able to...
MFC Telnet Application（mfc telnet 端口，代码实现、不调用telnet.exe） ...
...s. You may use it for text mode Internet protocols (SMTP, POP, HTTP, WHOIS etc.) for sending, retrieving emails, whois queries, and so on. The application also allows opening ports on local computers for incoming connections.
Background
You need an understanding of Internet protocols to be able to...
MFC Telnet Application（mfc telnet 端口，代码实现、不调用telnet.exe） ...
...s. You may use it for text mode Internet protocols (SMTP, POP, HTTP, WHOIS etc.) for sending, retrieving emails, whois queries, and so on. The application also allows opening ports on local computers for incoming connections.
Background
You need an understanding of Internet protocols to be able to...
MFC Telnet Application（mfc telnet 端口，代码实现、不调用telnet.exe） ...
...s. You may use it for text mode Internet protocols (SMTP, POP, HTTP, WHOIS etc.) for sending, retrieving emails, whois queries, and so on. The application also allows opening ports on local computers for incoming connections.
Background
You need an understanding of Internet protocols to be able to...