大约有 20,159 项符合查询结果（耗时：0.0349秒） [XML]
MySQL WHERE: how to write “!=” or “not equals”?
I need to do this
3 Answers
3
...
How to change 'Maximum upload size exceeded' restriction in Shiny and save user file inputs?
I've recently learned that R Shiny programs impose a maximum size restriction for file uploads by default (I don't know what the size is exactly, but I'm guessing it's 5,000 KB). I'd like to remove this restriction. How can I do so, and what is there a general rule of thumb for the size of user uplo...
Getting number of days in a month
I have a comboBox with all of the months in it.
7 Answers
7
...
Easiest way to read from a URL into a string in .NET
Given a URL in a string:
1 Answer
1
...
Android equivalent of NSUserDefaults in iOS
I'd like to save some simple data. On the iPhone, I can do it with NSUserDefaults in Objective-C.
1 Answer
...
How to run cron job every 2 hours
How can I write a Crontab that will run my /home/username/test.sh script every 2 hours?
5 Answers
...
How to get the last N rows of a pandas DataFrame?
I have pandas dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') :
3 Answers
...
MySQL - length() vs char_length()
What's the main difference between length() and char_length() ?
2 Answers
2
...
Java: using switch statement with enum under subclass
First I'll state that I'm much more familiar with enums in C# and it seems like enums in java is a quite mess.
6 Answers
...
When should i use npm with “-g” flag and why?
I've started using npm for js package management recently. Although I do have a fair understanding of package management in different enivronments(lets say using apt, rvm/gem, pythonbrew/virtualenv/pip), I don't quite understand how npm fully fits in.
...