等待用户从终端输入 R [英] waiting for user input in R from terminal

问题描述

当我从命令行以 Rscipt myscript.R 的形式运行我的脚本并从标准输入读取输入时，我能够等待用户在 R 中输入.

I was able to wait for user input in R when running my script as Rscipt myscript.R from the command line as follows and reading the input from stdin.

cat("Enter word : ")
word <- readLines(file("stdin"),1)
print(word);

但是，当我尝试使用以下代码从终端执行此操作时，它只会转到下一行而不接受用户输入.我该如何克服?

However, when I try to do it from the terminal using the below code, it just goes to the next line without taking user input. How do I overcome this?

word <- readline(prompt="Enter a word: ")
print(word);

推荐答案

用户"输入是 readline 之后的行.试试这个:

The "user" input is the line after readline. Try this:

word <- readline(prompt="Enter a word: ")
Hello world!
print(word)

更新

在控制台中等待输入:

Update

To wait for input in the console:

word <- readline(prompt="Enter a word: "); print(word)

或

{
  word <- readline(prompt="Enter a word: ")
  print(word)
}

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