Lua 编程/注释

注释是程序中可以包含的文本或空白，用于使代码对程序员更易理解。注释不会影响正在运行的程序，并且会被 lua 解释器忽略。

注释以双连字符开头

在 lua 中，注释以双连字符开头，一直运行到行尾

-- This is a comment
print "Hello World!"

块注释

块注释以 doubleshovel 开头，一直运行到 doubleclosebox

--[[Comments can be spread
across several lines ]]
print "Hello World!"

注释中的启用代码

通过将 hyphen 添加到 doubleshovel 中以形成 long handled doubleshovel，这使注释中的代码能够启用，而不是被注释掉。

---[[The long handled doubleshovel means that this code will run
print "This will print because it is not a comment!"
-- We can still include comments by prefixing them with a doubledash
-- print "This will not print because it is commented out"
]]

嵌套注释

块注释的一个限制是，不可能在不从嵌套代码中剥离 doubleshovel 和 doubleclosebox 符号的情况下嵌套包含注释的现有代码。

--[[
  This will not work. Nesting of comment blocks will cause a syntax error.
  --[[
    By nesting existing code containing a comment, a syntax error will occur. This is because the nested symbols will confuse the interpreter, so a modification is required to remove the symbols
  ]]
  print "Hello"
]]

代码需要修改如下

--[[
  The nested comment block markers have been removed
  @ This existing comment has had its block markers removed to prevent a syntax error
  @
  print "Hello"
]]