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C++程序结果出现1.#inf 1.#IO - C/C++ - 清泛IT论坛，有思想、有深度
表象原因：浮点数越界了（超过FLT_MAX最大值了），1.#IO是 %lf 格式化出来的字符串。
极可能原因：除0了，也就是f1 = f2 / 0。
做任何除法时，分母为零的判断不可少。
AppInventor2关闭屏幕时，如何让计时器继续工作？ - App应用开发 - 清泛IT...
...r2关闭屏幕时，如何让计时器继续工作？
这是一个很好的问题，通过查看文档可以看到有一个“一直计时”属性，默认是勾选的：
这个属性就是用来控制App后台运行/屏幕关闭时，计时器是否继续工作的。
经测试，开启...
angularjs directive call function specified in attribute and pass an argument to it
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Marko's solution works well.
To contrast with recommended Angular way (as shown by treeface's plunkr) is to use a callback expression which does not require defining the expressionHandler. In marko's example change:
In template
<div my-method="theMethodToBeCalled(myParam)">&l...
get original element from ng-click
I have a list of items in my view with ng-click attached to them:
2 Answers
2
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AngularJS : Differences among = & @ in directive scope? [duplicate]
Creating an isolate scope inside a directive lets us map the outer scope to the inner scope . We have seen six different ways to map to attrbutes:
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Understanding the ngRepeat 'track by' expression
I'm having difficulties understanding how the track by expression of ng-repeat in angularjs works. The documentation is very scarce: http://docs.angularjs.org/api/ng/directive/ngRepeat
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What's the most concise way to read query parameters in AngularJS?
I'd like to read the values of URL query parameters using AngularJS. I'm accessing the HTML with the following URL:
10 Ans...
Limit the length of a string with AngularJS
I have the following:
25 Answers
25
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Assign an initial value to radio button as checked
...e checked="checked" is the valid way to pre-check a radio button - just using "checked" isn't valid HTML (despite being supported by most browsers)
– Matt Healy
Jan 17 '11 at 9:36
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In Angular, I need to search objects in an array
In Angular, I have in scope a object which returns lots of objects. Each has an ID (this is stored in a flat file so no DB, and I seem to not be able to user ng-resource )
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