readkey

Console.ReadKey canceling [duplicate]

由 谁说胖子不能爱 提交于 2019-12-11 16:49:28
问题 This question already has answers here : Closed 6 years ago . Possible Duplicate: How to add a Timeout to Console.ReadLine()? If I have a Console.ReadKey(), It makes the whole program stuck, how can I make it so that it will read a key for 1 second, and if a key is not read, something else would be set. 回答1: static ConsoleKeyInfo? MyReadKey() { var task = Task.Run(() => Console.ReadKey(true)); bool read = task.Wait(1000); if (read) return task.Result; return null; } var key = MyReadKey(); if

How to wait for a keypress in R?

由 白昼怎懂夜的黑 提交于 2019-11-26 18:23:33
I want to pause my R script until the user presses a key. How do I do this? nnn As someone already wrote in a comment, you don't have to use the cat before readline() . Simply write: readline(prompt="Press [enter] to continue") If you don't want to assign it to a variable and don't want a return printed in the console, wrap the readline() in an invisible() : invisible(readline(prompt="Press [enter] to continue")) Gravitas Method 1 Waits until you press [enter] in the console: cat ("Press [enter] to continue") line <- readline() Wrapping into a function: readkey <- function() { cat ("Press

How to wait for a keypress in R?

由 本秂侑毒 提交于 2019-11-26 06:16:58
问题 I want to pause my R script until the user presses a key. How do I do this? 回答1: As someone already wrote in a comment, you don't have to use the cat before readline() . Simply write: readline(prompt="Press [enter] to continue") If you don't want to assign it to a variable and don't want a return printed in the console, wrap the readline() in an invisible() : invisible(readline(prompt="Press [enter] to continue")) 回答2: Method 1 Waits until you press [enter] in the console: cat ("Press [enter]
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