大约有 40,000 项符合查询结果（耗时：0.1143秒） [XML]
How can I add a third button to an Android Alert Dialog?
...I says that the Alert Dialog can have one, two or three buttons, but the SDK only allows for a positive and negative button. How then can I add a third button?
...
surface plots in matplotlib
...face.
Here's a smooth surface example:
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
# Axes3D import has side effects, it enables using projection='3d' in add_subplot
import matplotlib.pyplot as plt
import random
def fun(x, y):
return x**2 + y
fig = plt.figure()
ax = fig.add...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
... merge from one repository to another is very powerful. I recommend you look up the Pro Git book for those. Git in TFS is just another git server, it has pretty much all features that the standard Git has.
The ability to rewrite history before merging allows you to remove or combine a number of sm...
How can I format a nullable DateTime with ToString()?
..."yyyy-MM-dd hh:mm:ss") : "n/a");
EDIT: As stated in other comments, check that there is a non-null value.
Update: as recommended in the comments, extension method:
public static string ToString(this DateTime? dt, string format)
=> dt == null ? "n/a" : ((DateTime)dt).ToString(format);
...
Counting Chars in EditText Changed Listener
...hat number it in a TextView . I have written the following code and it works fine. However, my problem is when I click Backspace it counts up, but I need to decrement the number. How can I consider Backspace ?
...
Ternary operator in AngularJS templates
...hrough the loop.
With ng-class there is an easier way though: ng-class takes an expression that must evaluate to one of the following:
a string of space-delimited class names
an array of class names
a map/object of class names to boolean values.
An example of 1) was given above. Here is an ...
Passing a function with parameters as a parameter?
...
Use a "closure":
$(edit_link).click(function(){ return changeViewMode(myvar); });
This creates an anonymous temporary function wrapper that knows about the parameter and passes it to the actual callback implementation.
...
How to copy from current position to the end of line in vi
...d it but cant find any solution for this. Appreciate any help on this. Thank you.
4 Answers
...
Take the content of a list and append it to another list
I am trying to understand if it makes sense to take the content of a list and append it to another list.
7 Answers
...
How to get folder path from file path with CMD
...lated
Top 10 DOS Batch tips (Yes, DOS Batch...) shows batchparams.bat (link to source as a gist):
C:\Temp>batchparams.bat c:\windows\notepad.exe
%~1 = c:\windows\notepad.exe
%~f1 = c:\WINDOWS\NOTEPAD.EXE
%~d1 = c:
%~p1 = \WINDOWS\
%~n1 = NOTEPAD
%~x1...