大约有 28,000 项符合查询结果（耗时：0.0431秒） [XML]
Convert between UIImage and Base64 string
...let of ImageView
// Put Your Image URL
let url:NSURL = NSURL(string : "http://.jpg")!
// It Will turn Into Data
let imageData : NSData = NSData.init(contentsOf: url as URL)!
// Data Will Encode into Base64
let str64 = imageData.base64EncodedData(options: .lineLength64Characters)
// Now Base64 wi...
python NameError: global name '__file__' is not defined
...ys.argv[0])
print(os.path.dirname(os.path.realpath('__file__')))
Source:
http://cx-freeze.readthedocs.org/en/latest/faq.html
Your old line (initial question):
def read(*rnames):
return open(os.path.join(os.path.dirname(__file__), *rnames)).read()
Substitute your line of code with the following...
Overriding a JavaScript function while referencing the original
...raps existing functions, applies this and passes arguments correctly. See: http://underscorejs.org/#wrap
How to Set Opacity (Alpha) for View in Android
...xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#80000000"
android:endColor="#80FFFFFF"
android:angle="45"/>
<padding androi...
System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
...
If you're USING a date then I strongly advise that you use jodatime, http://joda-time.sourceforge.net/. Using System.currentTimeMillis() for fields that are dates sounds like a very bad idea because you'll end up with a lot of useless code.
Both date and calendar are seriously borked, and Cal...
CHECK constraint in MySQL is not working
...
MySQL 8.0.16 is the first version that supports CHECK constraints.
Read https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
If you use MySQL 8.0.15 or earlier, the MySQL Reference Manual says:
The CHECK clause is parsed but ignored by all storage engines.
Try a tri...
What does the “>” (greater-than sign) CSS selector mean?
...
As others mention, it's a child selector. Here's the appropriate link.
http://www.w3.org/TR/CSS2/selector.html#child-selectors
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How to get value of selected radio button?
...d("test");
alert(form.elements["test"].value);
The JSFiddle to prove it: http://jsfiddle.net/vjop5xtq/
Please note this was implemented in Firefox 33 (All other major browser seems to support it). Older browsers will require a polfyill for RadioNodeList for this to properly function
...
Update Angular model after setting input value with jQuery
... model after a jquery ajax call in the success function. It was slow with $http because there was duplicate change event listener for the element that was doing something else so i merged it into jQuery.
– Emmanuel Mahuni
Feb 17 '16 at 19:10
...
Length of a JavaScript object
...a plugin is equally accessible:
$.assocArraySize = function(obj) {
// http://stackoverflow.com/a/6700/11236
var size = 0, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) size++;
}
return size;
};
...