大约有 46,000 项符合查询结果（耗时：0.0660秒） [XML]
How to randomly select rows in SQL?
... 2005. In my db, I have a table "customerNames" which has two columns "Id" and "Name" and approx. 1,000 results.
11 Answer...
How do I change the formatting of numbers on an axis with ggplot?
...n Diggs.
fancy_scientific <- function(l) {
# turn in to character string in scientific notation
l <- format(l, scientific = TRUE)
# quote the part before the exponent to keep all the digits
l <- gsub("^(.*)e", "'\\1'e", l)
# turn the 'e+' into plotmath format
...
Can I load a .NET assembly at runtime and instantiate a type knowing only the name?
...uld cover loading library by finding bin directory path.
First solution:
string assemblyName = "library.dll";
string assemblyPath = HttpContext.Current.Server.MapPath("~/bin/" + assemblyName);
Assembly assembly = Assembly.LoadFrom(assemblyPath);
Type T = assembly.GetType("Company.Project.Classname...
What is the best way to tell if a character is a letter or number in Java without using regexes?
What is the best and/or easiest way to recognize if a string.charAt(index) is an A-z letter or a number in Java without using regular expressions? Thanks.
...
Getting a Custom Objects properties by string var [duplicate]
...
Because in this comment "thing" is a string (its surrounded by quotes).
– Rob
Oct 19 '16 at 8:11
...
How to do integer division in javascript (Getting division answer in int not float)? [duplicate]
... Normally parseInt() is a better choose to get integer part of number or string.
– tnga
Apr 4 '16 at 9:32
...
How do I link to part of a page? (hash?)
...htags in the url like : example.com/#RouteName?page=1#ID. one for routing and one for navigation inside of current page. finally i used html5 mode of URL in order to removing route hashtags ;) @tomsmeding
– iraj jelodari
Nov 19 '16 at 15:20
...
How to continue a Docker container which has exited
...
You can restart an existing container after it exited and your changes are still there.
docker start `docker ps -q -l` # restart it in the background
docker attach `docker ps -q -l` # reattach the terminal & stdin
...
file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON
...that cannot be decoded to $_POST by PHP
some example :
send by post JSON string
<input type="button" value= "click" onclick="fn()">
<script>
function fn(){
var js_obj = {plugin: 'jquery-json', version: 2.3};
var encoded = JSON.stringify( js_obj );
var data= encoded
...
Implementing Comments and Likes in database
...a user will be allowed to mark an entity as liked (like in FB), tag it and comment .
7 Answers
...