大约有 46,000 项符合查询结果(耗时:0.0709秒) [XML]
Limiting floats to two decimal points
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There are new format specifications, String Format Specification Mini-Language:
You can do the same as:
"{:.2f}".format(13.949999999999999)
Note 1: the above returns a string. In order to get as float, simply wrap with float(...):
float("{:.2f}".format(13.9...
How to check Oracle database for long running queries
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from v$sqltext_with_newlines t,V$SESSION s
where t.address =s.sql_address
and t.hash_value = s.sql_hash_value
and s.status = 'ACTIVE'
and s.username <> 'SYSTEM'
order by s.sid,t.piece
/
This shows locks. Sometimes things are going slow, but it's because it is blocked waiting for a lock:
s...
How do I find an element that contains specific text in Selenium Webdriver (Python)?
...ou can use contains() function which determines whether the first argument string contains the second argument string and returns boolean true or false as follows:
my_element = driver.find_element_by_xpath("//div[contains(., 'My Button')]")
You can use normalize-space() function which strips leadi...
How do I get the color from a hexadecimal color code using .NET?
...sing System.Windows.Media;
Color color = (Color)ColorConverter.ConvertFromString("#FFDFD991");
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Regex for password must contain at least eight characters, at least one number and both lower and up
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And How to avoid for empty string. Empty string regex should return true. I have used following regex (?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=])(?=\\S+$).{8,15}
– Coder
Jun 15 '18 at 7:52
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How do I detect the Python version at runtime? [duplicate]
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FYI this works, but the python_version function returns a string (e.g. on my system it prints '3.6.1'). If you're checking the version in an if statement like the OP is, Chris' answer makes much more sense, as you don't have to go through the clunky process of searching the string f...
How can I set focus on an element in an HTML form using JavaScript?
...PI (e.g. Document.forms, Document.getelementsByTagName or Node.childNodes) and either rely on a known document structure or look for some element specific properties.
– peterph
Jun 16 '14 at 10:03
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How to validate date with format “mm/dd/yyyy” in JavaScript?
...tion function is a little bit easier to read:
// Validates that the input string is a valid date formatted as "mm/dd/yyyy"
function isValidDate(dateString)
{
// First check for the pattern
if(!/^\d{1,2}\/\d{1,2}\/\d{4}$/.test(dateString))
return false;
// Parse the date parts t...
How to get a complete list of ticker symbols from Yahoo Finance? [closed]
I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com
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shortcut for creating a Map from a List in groovy?
...ons:
class PropertyMapCategory {
static Map mapProperty(Collection c, String keyParam, String valParam) {
return c.inject([:]) { memo, entry ->
memo[entry[keyParam]] = entry[valParam]
return memo
}
}
}
Example usage:
use(PropertyMapCategory) {
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