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App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
...，发现HC-05模块是经典蓝牙2.0，并不支持蓝牙5.0（低功耗BLE），它需要配对码进行配对，App Inventor 2 中使用“蓝牙客户端”组件，而非BLE拓展，必须在手机设置中配对成功才能出现在蓝牙列表中。
注意：
它的波特率是...
How to create a temporary directory/folder in Java?
...Path + ".d"); temp.mkdir(); ..., temp.delete();.
– Xiè Jìléi
Jan 11 '11 at 3:04
102
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What is the most efficient way to loop through dataframes with pandas? [duplicate]
...ld be marked as the best answer.
– Zoé De La Jarretière
Apr 2 at 3:59
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How can I download a specific Maven artifact in one command line?
... and I didn't touch the pluginRegistry. Thanks.
– Xiè Jìléi
Dec 14 '09 at 4:27
2
this "get" g...
Determine on iPhone if user has enabled push notifications
...ted May 4 '19 at 13:51
Jean-François Fabre♦
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answered Mar 27 '12 at 22:28
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Set breakpoint in C or C++ code programmatically for gdb on Linux
... answered Dec 1 '10 at 16:22
Håvard SHåvard S
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What is makeinfo, and how do I get it?
...d Sep 4 '19 at 21:25
Samuel LelièvreSamuel Lelièvre
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Access-Control-Allow-Origin Multiple Origin Domains?
...low-Origin: " . $http_origin); to make it work
– François Romain
Mar 13 '15 at 22:47
2
This code...
How to convert a Bitmap to Drawable in android?
...ted Jul 18 '16 at 12:19
Yasin Kaçmaz
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answered Mar 10 '10 at 11:17
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How to manually expand a special variable (ex: ~ tilde) in bash
... Preferably, I'd go with either of these two:
Charle's Duffy's solution
Håkon Hægland's solution
Original answer for historic purposes (but please don't use this)
If I'm not mistaken, "~" will not be expanded by a bash script in that manner because it is treated as a literal string "~". You...