R语言中while循环

R语言中while循环

1、测试1

a <- c(3,8,2,7,4,9)
i = 1
while (i <= length(a)) {
  print(a[i])
  i = i + 1
}

2、测试2

f <- NA
f[1] <- f[2] <- 1
i <- 3
while (i <= 10) {
  f[i] = f[i - 1] + f[i - 2]
  i = i + 1
}
f

3、测试3

f1 <- 0
f2 <- 1
sum = 0
while (TRUE) {
  sum <- f1 + f2
  f1 <- f2
  f2 <- sum
  if(sum > 300){
    break
  }
  print(sum)
}