大约有 45,000 项符合查询结果（耗时：0.0488秒） [XML]
What Android tools and methods work best to find memory/resource leaks? [closed]
...iew));
System.gc();
}
private void unbindDrawables(View view) {
if (view.getBackground() != null) {
view.getBackground().setCallback(null);
}
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
unbindDrawa...
Finding duplicate values in a SQL table
...: you'd need to have MIN(ID) and then delete for ID values not in the last if MIN(ID) values
– gbn
Jun 10 '14 at 9:59
1
...
MySQL offset infinite rows
...s the number of records in the limit, but consider this: What would you do if you got 18,446,744,073,709,551,615 records back? In fact, what would you do if you got 1,000,000,000 records?
Maybe you do want more than one billion records, but my point is that there is some limit on the number you wan...
Uploading Files in ASP.net without using the FileUpload server control
...edFile file = Request.Files["myFile"];
//check file was submitted
if (file != null && file.ContentLength > 0)
{
string fname = Path.GetFileName(file.FileName);
file.SaveAs(Server.MapPath(Path.Combine("~/App_Data/", fname)));
}
}
...
What is the difference between DSA and RSA?
...,R), (d,p,q)}
to sign a message M, compute:
S = M power d (mod R)
to verify a signature, compute:
M = S power e(mod R) = M power e.d(mod R) = M(mod R)
RSA can be used both for encryption and digital signatures,
simply by reversing the order in which the exponents are used:
the secret exponen...
Match everything except for specified strings
...
If you want to make sure that the string is neither red, green nor blue, caskey's answer is it. What is often wanted, however, is to make sure that the line does not contain red, green or blue anywhere in it. For that, anch...
Apply style ONLY on IE
...bly to use an Internet Explorer conditional comment in your HTML:
<!--[if IE]>
<style>
.actual-form table {
width: 100%;
}
</style>
<![endif]-->
There are numerous hacks (e.g. the underscore hack) you can use that will allow you to target only IE within yo...
Storing sex (gender) in database
... 4 - 2,147,483,648 to 2,147,483,647
BIT 1 (2 if 9+ columns) 2 (0 and 1)
CHAR(1) 1 26 if case insensitive, 52 otherwise
The BIT data type can be ruled out because it only supports two possible genders which is inadequate. While INT supports mor...
AngularJS - Any way for $http.post to send request parameters instead of JSON?
...r) {
$httpProvider.defaults.transformRequest = function(data){
if (data === undefined) {
return data;
}
return $.param(data);
}
});
That way all calls to $http.post will automatically transform the body to the same param format used by the jQuery $.post ...
Most lightweight way to create a random string and a random hexadecimal number
...
How does one specify the length?
– 3kstc
Jun 25 '19 at 4:58
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