x=3
print(x)
paste("x=",x)
cat("x=",x)
cat("x=",x,sep = "") #默认的分隔符是空格
#paste( ,sep=" ",collapse=NULL)向量转化为字符并连接
#sep:分割组的字符串 collapse:可选的字符串分割结果串
#paste( ,sep=" ",collapse=NULL)向量转化为字符并连接
#sep:分割组的字符串 collapse:可选的字符串分割结果串
paste(1:9,c("st","nd","rd",rep("th",6)))
paste(1:9,c("st","nd","rd",rep("th",6)),sep = "?")
paste(1:9,c("st","nd","rd",rep("th",6)),collapse = ",")#默认的分隔符是空格
paste(1:9,c("st","nd","rd",rep("th",6)),sep = "",collapse = ",")
#cat( ... , file = "", sep = " ", fill = FALSE, labels = NULL,append = FALSE)
#file:一个文件链接或文件名，若不写则表示输出到控制台；
#sep:分隔符
#append:是否追加，当且晋档参数file是文件名而非链接时，此参数才有效
cat(c("AB","C"),c("E","F"),"n",sep = '/')
print(c("AB","C"))
#cat( ... , file = "", sep = " ", fill = FALSE, labels = NULL,append = FALSE)
#file:一个文件链接或文件名，若不写则表示输出到控制台；
#sep:分隔符
#append:是否追加，当且晋档参数file是文件名而非链接时，此参数才有效
关于输入：scan() 与 readline()
> x=scan() 1: 6 2: 9 3: 11 4: 19 5: Read 4 items > x [1] 6 9 11 19 > y=readline()#只能输入一行 11 > y [1] "11"
