使用R将字符向量转换为字符串（带引号和逗号）

Question

大家好paste(c("A","B","C"),collapse='","')， 输出为"A\",\"B\",\"C"。

如何将"A","B","C"作为一个字符串？

Answer 1

即使R输出"A\",\"B\",\"C"， 请记住，实际值实际上是A","B","C。 您可以通过打印值来验证这一点：

> cat(paste(c("A","B","C"),collapse='","'))
A","B","C

现在，如果您希望值为"A","B","C"而不是A","B","C， 然后你需要paste再一次"，然后添加"：

> cat(paste('"', paste(c("A","B","C"),collapse='","'), '"', sep=''))
"A","B","C"