大约有 1,700 项符合查询结果(耗时:0.0157秒) [XML]
Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...gt; %timeit df1[~df1.index.duplicated(keep='last')]
1000 loops, best of 3: 365 µs per loop
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Can't ignore UserInterfaceState.xcuserstate
... the one will remove for every user if you work in different Mac (Home and office)
git rm --cache */UserInterfaceState.xcuserstate
git commit -m "Never see you again, UserInterfaceState"
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Setting the filter to an OpenFileDialog to allow the typical image formats?
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From the docs, the filter syntax that you need is as follows:
Office Files|*.doc;*.xls;*.ppt
i.e. separate the multiple extensions with a semicolon -- thus, Image Files|*.jpg;*.jpeg;*.png;....
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BLE(二)信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区,...
...Frequency Band);
BLE的市场定位是个体和民用,因此使用免费的ISM频段(频率范围是2.400-2.4835 GHz);
为了同时支持多个设备,将整个频带分为40份,每份的带宽为2MHz,称作RF Channel。
所以经过上面的定义之后,可以推测出BLE的...
请停下来重新想下 你究竟为何创业? - 资讯 - 清泛网 - 专注C/C++及内核技术
...我作为联合创始人创立了Basecamp——一款极简的项目协作工具,它可以帮助项目团队实时跟进进度,可按月订购。
这个小工具可以帮到一部分人,让他们的工作变得简单顺手。至少比通过邮件和私信方式分享文件要好点儿。而...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...[...]
@[
__schedule+697
__schedule+697
schedule+50
schedule_timeout+365
xfsaild+274
kthread+248
ret_from_fork+53
]: 73
@[
__schedule+697
__schedule+697
schedule_idle+40
do_idle+356
cpu_startup_entry+111
start_secondary+423
secondary_startup_64+165
]: 305
这里统计进程...
Excel: last character/string match in a string
...ble in older versions (yet I have not seen it before), when one has Excel O365 one can use:
=MATCH(2,1/(MID(A1,SEQUENCE(LEN(A1)),1)="Y"))
This can also be used to retrieve the last position of (overlapping) substrings:
=MATCH(2,1/(MID(A1,SEQUENCE(LEN(A1)),2)="YY"))
| Value | Pattern | Formu...
C/C++中的段错误(Segmentation fault) - C/C++ - 清泛网 - 专注C/C++及内核技术
...的解决办法也许是:
通过学习前人的经验和开发的工具,不断的尝试和研究,找出更恰当的方法来避免、发现并处理它。对于一些常见的地方,我们可以避免,对于一些“隐藏”的地方,我们要发现它,发现以后就要及时...
pdf2htmlEX实现pdf转html - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...不提示 (default: 0)
--external-hint-tool <string> 字体外部提示工具 (overrides --auto-hint) (default: "")
--stretch-narrow-glyph <int> 伸展狭窄的字形,而不是填充 (default: 0)
--squeeze-wide-glyph <int> 收缩较宽的字形,而不是截断 (default: 1)
--over...
setTimeout in for-loop does not print consecutive values [duplicate]
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365
You have to arrange for a distinct copy of "i" to be present for each of the timeout functions...