大约有 40,000 项符合查询结果（耗时：0.0513秒） [XML]
Get last n lines of a file, similar to tail
... blocks.append(f.read(BLOCK_SIZE))
else:
# file too small, start from begining
f.seek(0,0)
# only read what was not read
blocks.append(f.read(block_end_byte))
lines_found = blocks[-1].count('\n')
lines_to_go -= lines_found
...
Why 0 is true but false is 1 in the shell?
The above will output 1 , which is contradictory with all other programming languages I know.
10 Answers
...
php 获取操作系统、浏览器版本信息（持续更新） - 更多技术 - 清泛网 - 专...
...ent)){
$os = 'Windows NT';
}
else if (eregi('win', $agent) && ereg('32', $agent)){
$os = 'Windows 32';
}
else if (eregi('linux', $agent)){
$os = 'Linux';
}
else if (eregi('unix', $agent)){
$os = 'Unix';
}
else if (eregi('sun', $agent) && eregi('os', $agent)){
$os = 'Su...
Discuz 找回密码时提示参数错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...密码时提示参数错误source module member member_getpasswd.php第32行找到$uid = $_GET['uid'];在下方添加一行$sign = $_GET['sign'];tem...source\module\member\member_getpasswd.php
第32行找到
$uid = $_GET['uid'];
在下方添加一行
$sign = $_GET['sign'];
template\defau...
Good or bad practice for Dialogs in wpf with MVVM?
...
What if instead of using services, one uses a sort of Callback to facilitate interaction with the ViewModel and the View? For example, View executes a Command in the ViewModel, then when all is said and done, the ViewModel fires a Callback for the View to display the results of t...
How to get CSS to select ID that begins with a string (not in Javascript)?
... "starts with". Conversely, $= indicates "ends with".
The symbols are actually borrowed from Regex syntax, where ^ and $ mean "start of string" and "end of string" respectively.
See the specs for full information.
share
...
^M at the end of every line in vim
...g to do with editing a file in windows and then in linux. How can I remove all of these automatically?
9 Answers
...
Some questions about Automatic Reference Counting in iOS5 SDK
...k will be completed) for iOS 4.3.
I just read about ARC in iOS 5, and basically I understood that we will never need to release and retain objects anymore. My questions are:
...
Perform .join on value in array of objects
...Array.prototype.map is what you're looking for if you want to code functionally.
[
{name: "Joe", age: 22},
{name: "Kevin", age: 24},
{name: "Peter", age: 21}
].map(function(elem){
return elem.name;
}).join(",");
In modern JavaScript:
[
{name: "Joe", age: 22},
{name: "Kevin", age: 2...
execute function after complete page load
... why jQuery will most probably implement some heavy workarounds to support all the browsers. And this will make it very difficult to "exactly" simulate the behavior using plain Javascript (but not impossible of course).
as Jeffrey Sweeney and J Torres suggested, i think its better to have a setTime...