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R 输出


输出

与许多其他编程语言不同,您可以在 R 中输出代码而无需使用 print 函数

示例

"Hello World!"
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但是,如果您想使用,R 确实有一个可用的 print() 函数。如果您熟悉其他编程语言(例如 Python),这可能很有用,这些语言通常使用 print() 函数来输出代码。

示例

print("Hello World!")
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并且有时您必须使用 print() 函数来输出代码,例如在使用 for 循环时(您将在后面的章节中了解更多信息)

示例

for (x in 1:10) {
  print(x)
}
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结论:您可以选择是否使用 print() 函数来输出代码。但是,当您的代码位于 R 表达式内(例如,在上面示例中的花括号 {} 内)时,请使用 print() 函数来输出结果。



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