大约有 47,000 项符合查询结果(耗时:0.0704秒) [XML]

https://stackoverflow.com/ques... 

Eclipse: All my projects disappeared from Project Explorer

...t;Existing Projects into Workspace Click the "Select root directory" field and browse to each subfolder in your workspace folder, and import. For me, this was very tedious, since I had several dozen projects in my workspace, but it's the only solution I found short of restoring my entire workspace...
https://stackoverflow.com/ques... 

Rename column SQL Server 2008

I am using SQL Server 2008 and Navicat. I need to rename a column in a table using SQL. 11 Answers ...
https://stackoverflow.com/ques... 

Using XPATH to search text containing  

...ormalizes whitespace within elements, ignoring leading/trailing spaces and converting extra spaces, tabs and newlines into a single space. When Selenium reads text out of the page, it attempts to duplicate this behavior, so you can ignore all the tabs and newlines in your HTML and do...
https://stackoverflow.com/ques... 

What's the difference between a method and a function?

... called by name. It can be passed data to operate on (i.e. the parameters) and can optionally return data (the return value). All data that is passed to a function is explicitly passed. A method is a piece of code that is called by a name that is associated with an object. In most respects it is id...
https://stackoverflow.com/ques... 

How to overcome “datetime.datetime not JSON serializable”?

...h requires no dependencies. As you are using mongoengine (per comments) and pymongo is a dependency, pymongo has built-in utilities to help with json serialization: http://api.mongodb.org/python/1.10.1/api/bson/json_util.html Example usage (serialization): from bson import json_util import json...
https://stackoverflow.com/ques... 

The tilde operator in Python

... the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1. The reified form of the ~ operator is provided as operator.invert. To support this operator in your own class, g...
https://stackoverflow.com/ques... 

SQL WHERE.. IN clause multiple columns

... You can make a derived table from the subquery, and join table1 to this derived table: select * from table1 LEFT JOIN ( Select CM_PLAN_ID, Individual_ID From CRM_VCM_CURRENT_LEAD_STATUS Where Lead_Key = :_Lead_Key ) table2 ON table1.CM_PLAN_ID=table2.CM_PLAN...
https://stackoverflow.com/ques... 

Handling exceptions from Java ExecutorService tasks

...her explicitly or via methods such as submit, these task objects catch and maintain computational exceptions, and so they do not cause abrupt termination, and the internal exceptions are not passed to this method. When you submit a Runnable, it'll get wrapped in a Future. Your after...
https://stackoverflow.com/ques... 

Is there a way to loop through a table variable in TSQL without using a cursor?

... — set based operations will perform faster in every case I can think of and will normally use simpler code. Depending on your data it may be possible to loop using just SELECT statements as shown below: Declare @Id int While (Select Count(*) From ATable Where Processed = 0) > 0 Begin Se...
https://stackoverflow.com/ques... 

binning data in python with scipy/numpy

... of an array in prespecified bins? for example, i have an array of numbers and an array corresponding to bin start and end positions in that array, and I want to just take the mean in those bins? I have code that does it below but i am wondering how it can be cut down and improved. thanks. ...