大约有 30,000 项符合查询结果（耗时：0.0329秒） [XML]
Responsive css background images
...
If you want the same image to scale based on the size of the browser window:
background-image:url('../images/bg.png');
background-repeat:no-repeat;
background-size:contain;
background-position:center;
Do not set width, height, or margins.
EDIT:
The previous...
how to check redis instance version?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Switching the order of block elements with CSS [duplicate]
...wo lightweight CSS solutions:
Using flex, flex-flow and order:
Example1: Demo Fiddle
body{
display:flex;
flex-flow: column;
}
#blockA{
order:4;
}
#blockB{
order:3;
}
#blockC{
order:2;
}
Alternatively, reverse the Y scale:
...
How many GCC optimization levels are there?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...ne ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _(0x72)_(0x6C)_(0x64)_(0x21)
#define _____ __ ___ ____ _________
#include<stdio.h>
_____
hello2.c
#include<stdio.h>
main(){
int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1D;
*(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(...
Android SDK on a 64-bit linux machine
Is it possible to develop using the Android SDK on a 64-bit linux machine. The available SDK downloads seem to be just for 32-bit versions of Linux.
...
How do I safely pass objects, especially STL objects, to and from a DLL?
...L, then examine the produced .def file (if one is produced; this will vary based on your project options) or use a tool like Dependency Walker to find the mangled name. Then, you'll need to write your own .def file, defining an unmangled alias to the mangled function. As an example, let's use the Ge...
Django: multiple models in one template using forms [closed]
...ds) if instance is not None else {}
# Pass the initial data to the base
super(UserProfileForm, self).__init__(initial=_initial, instance=instance, *args, **kwargs)
# Retrieve the fields from the user model and update the fields with it
self.fields.update(fields_for_mo...
Pad a number with leading zeros in JavaScript [duplicate]
...10"; // note this is string type
alert(str.lpad("0", 4)); //result "0010"
DEMO
In ECMAScript 8 , we have new method padStart and padEnd which has below syntax.
"string".padStart(targetLength [,padString]):
So now we can use
const str = "5";
str.padStart(4, "0"); // "0005"
...
In Python, how do I determine if an object is iterable?
...
I've been studying this problem quite a bit lately. Based on that my conclusion is that nowadays this is the best approach:
from collections.abc import Iterable # drop `.abc` with Python 2.7 or lower
def iterable(obj):
return isinstance(obj, Iterable)
The above has b...