大约有 30,000 项符合查询结果（耗时：0.0343秒） [XML]
What does it mean when MySQL is in the state “Sending data”?
...hat further explains that the reasoning is most likely because of a lot of time doing disk access: dev.mysql.com/doc/refman/5.0/en/general-thread-states.html
– Matthew Kolb
Jul 30 '13 at 22:06
...
NameError: global name 'xrange' is not defined in Python 3
...nge().
For the record, what you are seeing is not a syntax error but a runtime exception instead.
If you do know what your are doing and are actively making a Python 2 codebase compatible with Python 3, you can bridge the code by adding the global name to your module as an alias for range. (Take...
What is Ruby equivalent of Python's `s= “hello, %s. Where is %s?” % (“John”,“Mary”)`
In Python, this idiom for string formatting is quite common
4 Answers
4
...
How to read the mode field of git-ls-tree's output
I know the last 3 oct digits are file mode, but what are the first 3 digits for?
I can't find it out in git user's manual.
...
How do you implement a class in C? [closed]
...or even defining the reference to each object as a constant before compile time. Feel free to make assumptions about which OOP concept I will need to implement (it will vary) and suggest the best method for each.
...
Indent multiple lines quickly in vi
...
I often indent visual blocks multiple times in a row, such as fixing some tags pasted in to an XML file. Rather than re-select the block in visual mode each time, one can use 'gv' to reuse the last visual block. Reference superuser.com/questions/220666/…
...
Regex for splitting a string using space when not surrounded by single or double quotes
I'm new to regular expressions and would appreciate your help. I'm trying to put together an expression that will split the example string using all spaces that are not surrounded by single or double quotes. My last attempt looks like this: (?!") and isn't quite working. It's splitting on the spa...
Dynamically add script tag with src that may include document.write
I want to dynamically include a script tag in a webpage however I have no control of it's src so src="source.js" may look like this.
...
What is wrong with using goto? [duplicate]
...ds, conditionals and loops. Structured programming was a revolution at the time.
goto's are appropriate in a few places, such as for jumping out of nested loops.
share
|
improve this answer
...
SQLite - UPSERT *not* INSERT or REPLACE
...ent TEXT,
author INTEGER NOT NULL REFERENCES user (id),
ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
Note in particular that name is the natural key of the row – id is used only for foreign keys, so the point is for SQLite to pick the ID value itself when inserting a new row. But w...