大约有 30,000 项符合查询结果（耗时：0.0668秒） [XML]
Unexpected character encountered while parsing value
...ion (screen shot below)
JSON Parsing Code
static readonly JsonSerializer _serializer = new JsonSerializer();
static readonly HttpClient _client = new HttpClient();
static async Task<T> GetDataObjectFromAPI<T>(string apiUrl)
{
using (var stream = await _client.GetStreamAsync(apiUrl...
Intellij idea cannot resolve anything in maven
... sure why IDEA doesn't have context menu similar to Eclipse to build maven based project. With version 2017.2 you need to do File > Other Settings > Default Settings > search for maven in search field. IDEA has really bad UX compared to Eclipse
– vikramvi
...
Capture characters from standard input without waiting for enter to be pressed
... use a library for that:
conio available with Windows compilers. Use the _getch() function to give you a character without waiting for the Enter key. I'm not a frequent Windows developer, but I've seen my classmates just include <conio.h> and use it. See conio.h at Wikipedia. It lists getch(...
PowerShell equivalent to grep -f
...ls | grep -I -N exe
105:-a--- 2006-11-02 13:34 49680 twunk_16.exe
106:-a--- 2006-11-02 13:34 31232 twunk_32.exe
109:-a--- 2006-09-18 23:43 256192 winhelp.exe
110:-a--- 2006-11-02 10:45 9216 winhlp32.exe
PS) grep /?
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Convert Iterable to Stream using Java 8 JDK
...
Based on your explanation, I'm curious why we got Collection.stream() but not Iterable.stream(). It seems like the reasoning to omit Iterable.stream() (or Stream.ofIterable()) applies equally to Collection.stream().
...
Changing a specific column name in pandas DataFrame
...
A one liner does exist:
In [27]: df=df.rename(columns = {'two':'new_name'})
In [28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
De...
pyplot axes labels for subplots
...tplotlib.pyplot as plt
x = range(1, 101)
y1 = [random.randint(1, 100) for _ in xrange(len(x))]
y2 = [random.randint(1, 100) for _ in xrange(len(x))]
fig = plt.figure()
ax = fig.add_subplot(111) # The big subplot
ax1 = fig.add_subplot(211)
ax2 = fig.add_subplot(212)
# Turn off axis lines and ti...
Database, Table and Column Naming Conventions? [closed]
...
wilsonmar.com/sql_adventureworks.htm is an excellent analysis of the AdventureWorks schema.
– Daniel Trebbien
Jan 11 '11 at 0:40
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What exactly is nullptr?
...hey have a type ( bool ). nullptr is a pointer literal of type std::nullptr_t, and it's a prvalue (you cannot take the address of it using &).
4.10 about pointer conversion says that a prvalue of type std::nullptr_t is a null pointer constant, and that an integral null pointer constant can be...
argparse store false if unspecified
...ems that if the option is -bar, then the dest is automatically set to bar, based on hg.python.org/cpython/rev/49677cc6d83a. However, I don't see where this default behavior is set in the code. I've always set the dest argument explicitly. Also, I think letting bar default to the dest for the --bar o...