大约有 16,000 项符合查询结果(耗时:0.0337秒) [XML]

https://stackoverflow.com/ques... 

How to overcome TypeError: unhashable type: 'list'

...the other answers, the error is to due to k = list[0:j], where your key is converted to a list. One thing you could try is reworking your code to take advantage of the split function: # Using with ensures that the file is properly closed when you're done with open('filename.txt', 'rb') as f: d = ...
https://stackoverflow.com/ques... 

When is “Try” supposed to be used in C# method names?

...r use case would mean that it might throw an exception (such as parsing an int), the TryParse pattern makes sense. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Resumable downloads when using PHP to send the file?

...('/bytes=(\d+)-(\d+)?/', $_SERVER['HTTP_RANGE'], $matches); $offset = intval($matches[1]); $length = intval($matches[2]) - $offset; } else { $partialContent = false; } $file = fopen($file, 'r'); // seek to the requested offset, this is 0 if it's not a partial content request fseek($fi...
https://stackoverflow.com/ques... 

Using {} in a case statement. Why?

What is the point with using { and } in a case statement? Normally, no matter how many lines are there in a case statement, all of the lines are executed. Is this just a rule regarding older/newer compilers or there is something behind that? ...
https://stackoverflow.com/ques... 

Jackson overcoming underscores in favor of camel-case

... You can configure the ObjectMapper to convert camel case to names with an underscore: objectMapper.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE); Or annotate a specific model class with this annotation: @JsonNaming(PropertyNamingStrategy.SnakeC...
https://stackoverflow.com/ques... 

Split string with delimiters in C

...fy the delimiter to use). Note that strtok() will modify the string passed into it. If the original string is required elsewhere make a copy of it and pass the copy to strtok(). EDIT: Example (note it does not handle consecutive delimiters, "JAN,,,FEB,MAR" for example): #include <stdio.h> #...
https://stackoverflow.com/ques... 

Error in Swift class: Property not initialized at super.init call

... 1 “A designated initializer must ensure that all of the “properties introduced by its class are initialized before it delegates up to a superclass initializer.” Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks. https://itunes.apple.com/us/book/swift-programming...
https://stackoverflow.com/ques... 

static function in C

What is the point of making a function static in C? 7 Answers 7 ...
https://stackoverflow.com/ques... 

How can I shrink the drawable on a button?

... = getResources().getDrawable(R.drawable.s_vit); drawable.setBounds(0, 0, (int)(drawable.getIntrinsicWidth()*0.5), (int)(drawable.getIntrinsicHeight()*0.5)); ScaleDrawable sd = new ScaleDrawable(drawable, 0, scaleWidth, scaleHeight); Button btn = findViewbyId(R.id.yourbtnID...
https://stackoverflow.com/ques... 

Combine two ActiveRecord::Relation objects

... Relation objects can be converted to arrays. This negates being able to use any ActiveRecord methods on them afterwards, but I didn't need to. I did this: name_relation = first_name_relation + last_name_relation Ruby 1.9, rails 3.2 ...