大约有 800 项符合查询结果（耗时：0.0138秒） [XML]
Convert list of dictionaries to a pandas DataFrame
...ata2)
pd.DataFrame.from_records(data2)
A B C D E F
0 5.0 NaN 3.0 3.0 NaN NaN
1 7.0 9.0 NaN NaN NaN 5.0
2 NaN 4.0 7.0 NaN 6.0 NaN
Reading Subset of Columns
"What if I don't want to read in every single column"? You can easily specify this using the columns=... ...
iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...后安装Mac OS X Snow Leopard，再升级，再安装XCode 4.2和iOS SDK 5.0，是最为费劲和折腾的一种方式了，如果条件允许，请勿搞些折腾，费时费力。此后真机调试用的是自己的iPhone 4s，系统5.0已越狱，非越狱机器且无IDP账号怎么调试，我...
Reducing the space between sections of the UITableView
...eView
heightForFooterInSection:(NSInteger)section {
return 5.0;
}
- (UIView*)tableView:(UITableView*)tableView
viewForHeaderInSection:(NSInteger)section {
return [[UIView alloc] initWithFrame:CGRectZero];
}
- (UIView*)tableView:(UITableView*)tableView
vi...
Understanding Apache's access log
... have 4 additional fields after the user-agent, like this : ... "Mozilla/5.0 (Windows NT 5.1; rv:16.0) Gecko/20100101 Firefox/16.0" 369 74500 - 567 what do they indicate?
– my account_ram
Jan 29 '14 at 21:18
...
Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
...So now the platform is officially called "Java 2 Platform Standard Edition 5.0 (J2SE 5.0)".
The suits also realized that the development community was not picking up their renaming of the JDK. But instead of reverting their change, they just decide to drop the "2" from the name of the individual p...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
...
That has changed (at least in MySQL 5.0). See the documentation: dev.mysql.com/doc/refman/5.0/en/timestamp.html
– SimonSimCity
Jan 21 '12 at 11:32
...
What are the correct version numbers for C#?
...e COM support, named arguments, tuple data type and optional parameters
C# 5.0 released with .NET 4.5 and VS2012 (August 2012). Major features: async programming, caller info attributes. Breaking change: loop variable closure.
C# 6.0 released with .NET 4.6 and VS2015 (July 2015). Implemented by Rosl...
What is the difference between '/' and '//' when used for division?
...es Python 2.x to adopt the 3.x behavior.
Regardless of the future import, 5.0 // 2 will return 2.0 since that's the floor division result of the operation.
You can find a detailed description at https://docs.python.org/whatsnew/2.2.html#pep-238-changing-the-division-operator
...
Get operating system info
... xp/i' => 'Windows XP',
'/windows nt 5.0/i' => 'Windows 2000',
'/windows me/i' => 'Windows ME',
'/win98/i' => 'Windows 98',
'/win95/i' ...
How to find the operating system version using JavaScript?
...atform = Win32
# appCodeName = Mozilla
# appName = Netscape
# appVersion = 5.0 (Windows; en-US)
# language = en-US
# mimeTypes = [object MimeTypeArray]
# oscpu = Windows NT 5.1
# vendor = Firefox
# vendorSub = 1.0.7
# product = Gecko
# productSub = 20050915
# plugins = [object PluginArray]
# securit...