大约有 45,000 项符合查询结果(耗时:0.0677秒) [XML]

https://stackoverflow.com/ques... 

Jquery: how to trigger click event on pressing enter key

...... $('#txtSearchProdAssign').keypress(function (e) { var key = e.which; if(key == 13) // the enter key code { $('input[name = butAssignProd]').click(); return false; } }); $(function() { $('input[name="butAssignProd"]').click(function() { alert('Hello...!'); }); ...
https://stackoverflow.com/ques... 

When to use “ON UPDATE CASCADE”

... It's true that if your primary key is just a identity value auto incremented, you would have no real use for ON UPDATE CASCADE. However, let's say that your primary key is a 10 digit UPC bar code and because of expansion, you need to chang...
https://stackoverflow.com/ques... 

UIScrollView not scrolling

...s always good to show a complete working code snippet: // in viewDidLoad (if using Autolayout check note below): UIScrollView *myScrollView; UIView *contentView; // scrollview won't scroll unless content size explicitly set [myScrollView addSubview:contentView];//if the contentView is not already...
https://stackoverflow.com/ques... 

Requests — how to tell if you're getting a 404

... Look at the r.status_code attribute: if r.status_code == 404: # A 404 was issued. Demo: >>> import requests >>> r = requests.get('http://httpbin.org/status/404') >>> r.status_code 404 If you want requests to raise an exception...
https://stackoverflow.com/ques... 

Type List vs type ArrayList in Java [duplicate]

... translated into a LinkedList without affecting the rest of the codebase. If one used ArrayList instead of List, it's hard to change the ArrayList implementation into a LinkedList one because ArrayList specific methods have been used in the codebase that would also require restructuring. You can r...
https://stackoverflow.com/ques... 

What does “default” mean after a class' function declaration?

... the compiler-generated version of that function, so you don't need to specify a body. You can also use = delete to specify that you don't want the compiler to generate that function automatically. With the introduction of move constructors and move assignment operators, the rules for when automat...
https://stackoverflow.com/ques... 

From ND to 1D arrays

... 3, 4, 5, 6]) Note that ravel() returns a view of a when possible. So modifying b also modifies a. ravel() returns a view when the 1D elements are contiguous in memory, but would return a copy if, for example, a were made from slicing another array using a non-unit step size (e.g. a = x[::2]). If...
https://stackoverflow.com/ques... 

How do I check for nulls in an '==' operator overload without infinite recursion?

...e(foo1 == foo2); public static bool operator ==(Foo foo1, Foo foo2) { if (object.ReferenceEquals(null, foo1)) return object.ReferenceEquals(null, foo2); return foo1.Equals(foo2); } share | ...
https://stackoverflow.com/ques... 

Loop through all the files with a specific extension

I want to loop through each file in the current folder and check if it matches a specific extension. The code above doesn't work, do you know why? ...
https://stackoverflow.com/ques... 

Test for multiple cases in a switch, like an OR (||)

... I might as well clarify the point: Once a case has evaluated to true, that's it. No more cases are checked, just all the statements executed until the end: i.e. a "break;" instruction or if the switch is terminated. – BeauC...