blocks|key|351663|text|您可以在print中使用paste|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|351664|print(paste0("Current+working+dir:+",+wd))|code-block|syntax|javascript|351665|或cat|351666|cat("Current+working+dir:+",+wd)|351667|entityMap^0|4|5|C|5|0|0|1|3|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|P|$]]

You can use <code>paste</code> with <code>print</code>

<pre><code>print(paste0("Current working dir: ", wd))
</code></pre>

or <code>cat</code>

<pre><code>cat("Current working dir: ", wd)
</code></pre>

blocks|key|351689|text|或者使用message|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|351690|message("Current+working+dir:+",+wd)|code-block|syntax|javascript|351691|@agstudy的答案在这里更合适|351692|entityMap^0|4|7|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Or using <code>message</code>

<pre><code>message("Current working dir: ", wd)
</code></pre>

@agstudy's answer is the more suitable here

blocks|key|133815|text|最简单的方法是使用paste()|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|133816|>+paste("Today+is",+date())
[1]+"Today+is+Sat+Feb+21+15:25:18+2015"|code-block|syntax|javascript|133817|paste0()将导致以下结果：|133818|>+paste0("Today+is",+date())
[1]+"Today+isSat+Feb+21+15:30:46+2015"|133819|请注意，字符串和x之间没有默认分隔符。在字符串末尾使用空格是一种快速解决方法：|133820|>+paste0("Today+is+",+date())
[1]+"Today+is+Sat+Feb+21+15:32:17+2015"|133821|然后将任一函数与print()结合使用|133822|>+print(paste("This+is",+date()))
[1]+"This+is+Sat+Feb+21+15:34:23+2015"|133823|或|133824|>+print(paste0("This+is+",+date()))
[1]+"This+is+Sat+Feb+21+15:34:56+2015"|133825|正如其他用户所说，您也可以使用cat()|133826|entityMap^0|9|7|0|0|0|8|0|0|0|0|8|7|0|0|0|0|F|5|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1D|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1E|8|@$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|U|3|V|5|H|7|1H|8|@]|D|@]|E|$I|J]]|$1|W|3|X|5|6|7|1I|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|H|7|1J|8|@]|D|@]|E|$I|J]]|$1|10|3|11|5|6|7|1K|8|@$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|12|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|13|$]]

Easiest way to do this is to use <code>paste()</code>

<pre><code>&gt; paste("Today is", date())
[1] "Today is Sat Feb 21 15:25:18 2015"
</code></pre>

<code>paste0()</code> would result in the following:

<pre><code>&gt; paste0("Today is", date())
[1] "Today isSat Feb 21 15:30:46 2015"
</code></pre>

Notice there is no default seperator between the string and x. Using a space at the end of the string is a quick fix:

<pre><code>&gt; paste0("Today is ", date())
[1] "Today is Sat Feb 21 15:32:17 2015"
</code></pre>

Then combine either function with <code>print()</code>

<pre><code>&gt; print(paste("This is", date()))
[1] "This is Sat Feb 21 15:34:23 2015"
</code></pre>

Or

<pre><code>&gt; print(paste0("This is ", date()))
[1] "This is Sat Feb 21 15:34:56 2015"
</code></pre>

As other users have stated, you could also use <code>cat()</code>

blocks|key|351756|text|可以使用paste0或cat方法将字符串与R中的变量值组合在一起|type|unstyled|depth|inlineStyleRanges|entityRanges|data|351757|例如：|351758|paste0("Value+of+A+:+",+a)

cat("Value+of+A+:+",+a)|code-block|syntax|javascript|351759|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

you can use paste0 or cat method to combine string with variable values in R

For Example:

<pre><code>paste0("Value of A : ", a)

cat("Value of A : ", a)
</code></pre>

blocks|key|351777|text|一个技巧是将您的代码片段包含到()中，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|351778|(wd+<-+getwd())|code-block|syntax|javascript|351779|这意味着将当前工作目录分配给wd，然后打印。|351780|entityMap^0|F|2|0|0|E|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

A trick would be to include your piece of code into <code>()</code> like this:
<pre><code>(wd &lt;- getwd())
</code></pre>
which means that the current working directory is assigned to <code>wd</code> and then printed.

Is there a way to print text and variable contents on the same line? For example,

<pre><code>wd &lt;- getwd()
print("Current working dir: ", wd)
</code></pre>

I couldn't find anything about the syntax that would allow me to do this.

Print string and variable contents on the same line in R

有没有办法在同一行打印文本和变量内容？例如,wd <- getwd()print("Current working dir: ", wd)我找不到任何关于允许我这样做的语法。

问在R中的同一行上打印字符串和变量内容
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