大约有 47,000 项符合查询结果（耗时：0.0631秒） [XML]
How to read data from a zip file without having to unzip the entire file
...and then read it and populate the list of entries. At that point, if your app calls Extract() on one entry, DotNetZip seeks to the proper place in the zip file, and decompresses the data for just that entry.
– Cheeso
May 11 '11 at 19:57
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How to write to an existing excel file without overwriting data (using pandas)?
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Here is a helper function:
def append_df_to_excel(filename, df, sheet_name='Sheet1', startrow=None,
truncate_sheet=False,
**to_excel_kwargs):
"""
Append a DataFrame [df] to existing Excel file [filenam...
How to debug heap corruption errors?
I am debugging a (native) multi-threaded C++ application under Visual Studio 2008. On seemingly random occasions, I get a "Windows has triggered a break point..." error with a note that this might be due to a corruption in the heap. These errors won't always crash the application right away, altho...
Redirect to named url pattern directly from urls.py in django?
...clude
urlpatterns = [
# this example uses named URL 'hola-home' from app named hola
# for more redirect's usage options: https://docs.djangoproject.com/en/2.1/topics/http/shortcuts/
path('', lambda request: redirect('hola/', permanent=False)),
path('hola/', include("hola.urls")),
...
Add custom headers to WebView resource requests - android
... I know loadURL has the parameter for extraHeaders , but those are only applied to the initial request. All subsequent requests do not contain the headers. I have looked at all overrides in WebViewClient , but nothing allows for adding headers to resource requests - onLoadResource(WebView vie...
How can I do something like a FlowLayout in Android?
...yout_width="match_parent"
android:layout_height="wrap_content"
app:flexWrap="wrap">
<!-- contents go here -->
</com.google.android.flexbox.FlexboxLayout>
For build instructions, see the github repo.
More about this - https://android-developers.googleblog.com/2017/02/...
Using Java 8 to convert a list of objects into a string obtained from the toString() method
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One simple way is to append your list items in a StringBuilder
List<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(3);
StringBuilder b = new StringBuilder();
list.forEach(b::append);
Sys...
Check if a string is a date value
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This is how I solved this problem in an app I'm working on right now:
updated based on feedback from krillgar:
var isDate = function(date) {
return (new Date(date) !== "Invalid Date") && !isNaN(new Date(date));
}
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abort, terminate or exit?
...eturn from there. This means that you are guaranteed that stack unwinding happens correctly and all destructors are called. In other words:
int main() {
try {
// your stuff
}
catch( ... ) {
return 1; // or whatever
}
}
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Questions every good .NET developer should be able to answer? [closed]
...a list/catalog of good questions, a kind of minimum standard to see if the applicants are experienced. So, my question is:
...