Warning in install.packages :
'lib = "C:/Program Files/R/R-4.1.0/library"' is not writable
Warning in install.packages :
cannot create dir 'C:\Users??', reason 'Invalid argument'
Error in install.packages : unable to create ‘C:/Users/??/Documents/R/win-library/4.1’
这是因为你的电脑用户名是中文，而Rstudio对中文的兼容性不好