R语言中paste()中粘贴向量

> num <- c(1,2,3,4)
> s <- paset("hello",num,"world")
> num
[1] 1 2 3 4
> s <- paste("hello",num,"world")
> s
[1] "hello 1 world" "hello 2 world" "hello 3 world" "hello 4 world"

> c("hello 1 2 3 4 world")
[1] "hello 1 2 3 4 world"

num <- c(1,2,3,4)
s <- c("hello")

for(i in 1:length(num))
{
s <- paste(s,num[i])
}
s <- paste(s,"world")