R语言的输出：cat() print() paste() 输入：scan() readline() |
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R语言的输出：cat() print() paste() 输入：scan() readline()
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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"
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