Instantiation of C# generics
Method One
Add a where T: new()
after a class that uses generics
public class Example<T> where T : new()
{
public static T Get()
{
T t = new T();
...........
}
}
Add a where T: new()
after a class that uses generics
public class Example<T> where T : new()
{
public static T Get()
{
T t = new T();
...........
}
}
Download community version on official website
Unzip to Disk C: C:\mysql-5.7.21-winx64
Run the command line as an administrator and enter the directory C:\mysql-5.7.21-winx64\bin
批处理文件(batch file)包含一系列 DOS命令,通常用于自动执行重复性任务。用户只需双击批处理文件便可执行任务,而无需重复输入相同指令。编写批处理文件非常简单,但难点在于确保一切按顺序执行。编写严谨的批处理文件可以极大程度地节省时间,在应对重复性工作时尤其有效。
在Windows中善用批处理可以简化很多重复工作
Code :
javascript:(function() {
function l(u, i) {
var d = document;
if (!d.getElementById(i)) {
var s = d.createElement('script');
s.src = u;
s.id = i;
d.body.appendChild(s);
}
}
l('//code.jquery.com/jquery-3.2.1.min.js', 'jquery')
})();
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