R语言中的循环补齐

x = c(1,3,5,6,2)
y = c(3,2,5)
x == y

## [1] FALSE FALSE  TRUE FALSE  TRUE

x = c(1,3,5,6,2)
y = c(3,2,5)
x == y

## [1] FALSE FALSE  TRUE FALSE  TRUE

x > y

## [1] FALSE  TRUE FALSE  TRUE FALSE

x < y

## [1]  TRUE FALSE FALSE FALSE FALSE

x + y

## [1]  4  5 10  9  4

x - y

## [1] -2  1  0  3  0

x * y

## [1]  3  6 25 18  4

x / y

## [1] 0.3333333 1.5000000 1.0000000 2.0000000 1.0000000

paste(x,y,sep = ",")

## [1] "1,3" "3,2" "5,5" "6,3" "2,2"

paste0(x,y)

## [1] "13" "32" "55" "63" "22"

paste0(rep("x",3),1:3)

## [1] "x1" "x2" "x3"

paste0("x",1:3)

## [1] "x1" "x2" "x3"

paste0(rep("student",times = 7),seq(from = 2, to = 15,by = 2))

## [1] "student2"  "student4"  "student6"  "student8"  "student10"
## [6] "student12" "student14"

paste0("student",seq(2,15,2))

## [1] "student2"  "student4"  "student6"  "student8"  "student10"
## [6] "student12" "student14"