> m<-read.table("C:\\Users\\yoyo\\Desktop\\Grade.csv")
警告信息：
In read.table("C:\\Users\\yoyo\\Desktop\\Grade.csv") :
  incomplete final line found by readTableHeader on 'C:\Users\yoyo\Desktop\Grade.csv'
> m<-read.csv("C:\\Users\\yoyo\\Desktop\\Grade.csv")
错误于make.names(col.names, unique = TRUE) : 多字节字符串1有错
此外: 警告信息：
In read.table(file = file, header = header, sep = sep, quote = quote,  :
  incomplete final line found by readTableHeader on 'C:\Users\yoyo\Desktop\Grade.csv'
> m<-read.csv("C:\\Users\\yoyo\\Desktop\\Grade.csv",hear=T)
错误于read.table(file = file, header = header, sep = sep, quote = quote,  :
  参数没有用(hear = TRUE)