大约有 16,000 项符合查询结果(耗时:0.0332秒) [XML]
how to check the dtype of a column in python pandas
...treat numeric columns and string columns. What I am doing now is really dumb:
6 Answers
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How do I insert datetime value into a SQLite database?
I am trying to insert a datetime value into a SQLite database. It seems to be sucsessful but when I try to retrieve the value there is an error:
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How to declare a type as nullable in TypeScript?
...r undefined.
You can make the field optional which is different from nullable.
interface Employee1 {
name: string;
salary: number;
}
var a: Employee1 = { name: 'Bob', salary: 40000 }; // OK
var b: Employee1 = { name: 'Bob' }; // Not OK, you must have 'salary'
var c: Employee1 = { name: 'B...
std::auto_ptr to std::unique_ptr
With the new standard coming (and parts already available in some compilers), the new type std::unique_ptr is supposed to be a replacement for std::auto_ptr .
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Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
I'm working on a CMS that fetches a user's profile image from their Facebook URL (that is, http://facebook.com/users_unique_url ). How can I accomplish this? Is there a Faceboook API call that fetches a user's profile image URL without the user needing to Allow the application?
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Notification click: activity already open
...notification and the activity is already opened, it's not started again, but just brought to front.
6 Answers
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socket.shutdown vs socket.close
I recently saw a bit of code that looked like this (with sock being a socket object of course):
7 Answers
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Should I put #! (shebang) in Python scripts, and what form should it take?
Should I put the shebang in my Python scripts? In what form?
12 Answers
12
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How do I set the maximum line length in PyCharm?
I am using PyCharm on Windows and want to change the settings to limit the maximum line length to 79 characters, as opposed to the default limit of 120 characters.
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JavaScript: Check if mouse button down?
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Regarding Pax' solution: it doesn't work if user clicks more than one button intentionally or accidentally. Don't ask me how I know :-(.
The correct code should be like that:
var mouseDown = 0;
document.body.onmousedown = fun...
