while 循环

  在月之脚本中的 while 循环支持几种不同的写法：

i = 10
while i > 0
  print i
  i -= 1

while running == true do my_function!

i = 10
while i > 0
  print i
  i -= 1

while running == true do my_function!

i = 10
until i == 0
  print i
  i -= 1

until running == false do my_function!

i = 10
until i == 0
  print i
  i -= 1
until running == false do my_function!

  像 for 循环的语法一样，while 循环也可以作为一个表达式使用。为了使函数返回 while 循环的累积列表值，必须明确使用返回语句返回 while 循环表达式。

repeat 循环

  repeat 循环是从 Lua 语言中搬过来的相似语法：

i = 10
repeat
  print i
  i -= 1
until i == 0

i = 10
repeat
  print i
  i -= 1
until i == 0