Question

我的lua代码出了什么问题？

local which

print("Type f to convert fahrenheit to celsius and c to convert celsius to fahrenheit")
which = io.read()
repeat
    if which=="f" then
        local c
        local f
        print("input your fahrenheit temperature")
        f = tonumber(io.read())
        c = (f-32)/1.8
        print(c)
    end

    elseif which=="c" then
        local ce
        local fa
        print("input your celsius temperature")
        c = tonumber(io.read())
        f = (c*1.8)+32
    end

    else do
    print("Type f to convert fahrenhiet to celsius and c to convert celsius to fahrenheit")
until which=="f" or which=="c"

Answer 1

您先关闭if块。移除您用于关闭end和if的{{1}}语句，并在elseif之后将其关闭。

else

P.S。：这可能会导致您无限循环。您需要在重复内部的每次迭代后更新local which print("Type f to convert fahrenheit to celsius and c to convert celsius to fahrenheit") which = io.read() repeat if which=="f" then local c local f print("input your fahrenheit temperature") f = tonumber(io.read()) c = (f-32)/1.8 print(c) elseif which=="c" then local ce local fa print("input your celsius temperature") c = tonumber(io.read()) f = (c*1.8)+32 else print("Type f to convert fahrenhiet to celsius and c to convert celsius to fahrenheit") end until which=="f" or which=="c"，直到。

Answer 2

end之前应该没有elseif。在end之后，之前也应该没有do而没有else。在end部分之后和else之前应该有until：

repeat
  if ... then
    ...
  elseif ... then
    ...
  else
    ...
  end
until ...

如果你至少发布了你的问题（错误信息，意外输出等），下次会有所帮助。

Answer 3

local which
repeat
    print("Type f to convert fahrenheit to celsius and c to convert celsius to fahrenheit")
    which = io.read()
    if which=="f" then
        local c
        local f
        print("input your fahrenheit temperature")
        f = tonumber(io.read())
        c = (f-32)/1.8
        print(c)

    elseif which=="c" then
        local c
        local f
        print("input your celsius temperature")
        c = tonumber(io.read())
        f = (c*1.8)+32
        print(f)
    end
    print("do you want to play again? y/n?")
    antwort = io.read()


until antwort ~= "y"

重复直到lua循环

3 个答案: