大约有 15,210 项符合查询结果（耗时：0.0422秒） [XML]
SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
...
I'd recommend reading that PEP the error gives you. The problem is that your code is trying to use the ASCII encoding, but the pound symbol is not an ASCII character. Try using UTF-8 encoding. You can start by putting # -*- coding: utf-...
How do I send a JSON string in a POST request in Go
...ntln("URL:>", url)
var jsonStr = []byte(`{"title":"Buy cheese and bread for breakfast."}`)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
req.Header.Set("X-Custom-Header", "myvalue")
req.Header.Set("Content-Type", "application/json")
client := &http.C...
How to copy an object in Objective-C
I need to deep copy a custom object that has objects of its own. I've been reading around and am a bit confused as to how to inherit NSCopying and how to use NSCopyObject.
...
Always pass weak reference of self into block in ARC?
...located properly.
Because, in a situation like this, self by definition already has a strong reference to the block, it's usually easiest to resolve by making an explicitly weak reference to self for the block to use:
__weak MyObject *weakSelf = self;
[self setMyBlock:^(id obj, NSUInteger idx, BOO...
C/C++ macro string concatenation
...
@mr5 Read the comments, carefully. Macro names passed as macro arguments are not expanded before being passed. They are, however, expanded in the body of the macro. So if A is defined as FRED, STRINGIZE_NX(A) expands to "A" but ST...
How can I see all the issues I'm watching on Github?
...ngle place https://github.com/notifications
By default, this will show unread notifications (also indicated by a mailbox with a number in the top right corner). From that page you can choose "All Notifications", or https://github.com/notifications?all=1 to see all the issues being watched that hav...
Why can't C++ be parsed with a LR(1) parser?
I was reading about parsers and parser generators and found this statement in wikipedia's LR parsing -page:
6 Answers
...
android splash screen sizes for ldpi,mdpi, hdpi, xhdpi displays ? - eg : 1024X768 pixels for ldpi
...can give is the minimum screen sizes, which is provided by Google. You can read more about this if you follow the link in the answer.
– Alex Wiese
Oct 4 '13 at 22:47
2
...
What is the difference between up-casting and down-casting with respect to class variable
...cessary'. The vtable takes care of the method dispatch, and the variable already points to the entire object.
– Marquis of Lorne
Sep 27 '15 at 23:55
1
...
Does Java SE 8 have Pairs or Tuples?
... in Java SE was proposed and rejected at least once. See this discussion thread on one of the OpenJDK mailing lists. The tradeoffs are not obvious. On the one hand, there are many Pair implementations in other libraries and in application code. That demonstrates a need, and adding such a class to Ja...