R-error: 错误: nul character not allowed (line 1)

路径中加转义字符

Validate a character as a file path?

• 确定字符是否为有效文件路径的最佳方法是什么？ 因此CheckFilePath(“my*file.csv”)将返回FALSE(在Windows *上是无效字符)，而CheckFilePath(“c:\users\blabla\desktop\myfile.csv” )将返回TRUE。