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App Inventor如何取文本每一个字符进行运算？ - App Inventor 2 中文网 - ...
问：App Inventor如何取文本每一个字符进行运算？
答：
[hide]1、拿出文本的长度，进行循环，然后用文本.截取方法，拿出每一个字符，比如某个字母'a'。
文档：https://www.fun123.cn/reference/blocks/text.html#segment
2、要看具体的每个...
How to get the python.exe location programmatically? [duplicate]
...ython interpreter so I can pass a script file to execute (from an external application).
3 Answers
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Migrating from JSF 1.2 to JSF 2.0
I am working with a rather large app written in JSF 1.2 .
JSF 1.2 is around 6 years old now. I need to upgrade to JSF 2.0. How painful will this be? I noticed that some attributes in custom tags have been changed etc.
...
Android: Remove all the previous activities from the back stack
...is is the official way to got. No need to change all the activities in the app.
– AlikElzin-kilaka
Feb 13 '15 at 1:50
...
How to refresh app upon shaking the device?
I need to add a shake feature that will refresh my Android application.
16 Answers
16
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How do I force my .NET application to run as administrator?
... works on Visual Studio 2008 and higher: Project + Add New Item, select "Application Manifest File". Change the <requestedExecutionLevel> element to:
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
The user gets the UAC prompt when they start the program. ...
How to reverse a 'rails generate'
...ithout actually deleting them.
$ rails d controller welcome -p
remove app/controllers/welcome_controller.rb
invoke erb
remove app/views/welcome
invoke test_unit
remove test/controllers/welcome_controller_test.rb
invoke helper
remove app/helpers/welcome_helper.rb
invoke...
Apk location in New Android Studio
I started using new Android Studio and cant find the APK of the application in IDE,where it actually locates?
31 Answers
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“Uncaught Error: [$injector:unpr]” with angular after deployment
I have a fairly simple Angular application that runs just fine on my dev machine, but is failing with this error message (in the browser console) after I deploy it:
...
ng-model for `` (with directive DEMO)
... reader.onload = function (loadEvent) {
scope.$apply(function () {
scope.fileread = loadEvent.target.result;
});
}
reader.readAsDataURL(changeEvent.target.files[0]);
});
}
...