大约有 48,000 项符合查询结果(耗时:0.0589秒) [XML]

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Split column at delimiter in data frame [duplicate]

...me. I added a "x|y" line to avoid ambiguities: df <- data.frame(ID=11:13, FOO=c('a|b','b|c','x|y')) foo <- data.frame(do.call('rbind', strsplit(as.character(df$FOO),'|',fixed=TRUE))) Or, if you want to replace the columns in the existing data.frame: within(df, FOO<-data.frame(do.call('r...
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set up device for development (???????????? no permissions)

... WarrenFaithWarrenFaith 55.3k2323 gold badges128128 silver badges145145 bronze badges ...
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How to find first element of array matching a boolean condition in JavaScript?

... answered Aug 29 '13 at 20:20 BergiBergi 473k9393 gold badges764764 silver badges11091109 bronze badges ...
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How are the points in CSS specificity calculated

... 139 Pekka's answer is practically correct, and probably the best way to think about the issue. How...
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How can I use a search engine to search for special characters? [closed]

...5 Alex D 36211 silver badge1010 bronze badges answered Nov 22 '11 at 19:53 dncranedncrane ...
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Modifying the “Path to executable” of a windows service

...ig SUCCESS SERVICE_NAME: ServiceName TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Services\ServiceName LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : <Disp...
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Finding what branch a Git commit came from

... rogerdpack 46.2k3030 gold badges200200 silver badges315315 bronze badges answered Apr 25 '10 at 4:07 CascabelCascabel...
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How to get the current taxonomy term ID (not the slug) in WordPress?

... 308 Nevermind! I found it :) get_queried_object()->term_id; ...
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Is it possible to make a div 50px less than 100% in CSS3? [duplicate]

... Yes you can. Without using the IE's expression(), you can do that in CSS3 by using calc(). div { width: 100%; width: -webkit-calc(100% - 50px); width: -moz-calc(100% - 50px); width: calc(100% - 50px); } Demo: http://jsfiddle.net/thirtydot/Nw3yd/66/ This will make your life so ...
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Merge multiple lines (two blocks) in Vim

... | edited Jun 10 '13 at 17:13 answered May 25 '12 at 19:44 ...