random - 函数名Gen() : attempt to compare nil with number

我得到的错误是

[string "function NameGen()..."]:14: attempt to compare nil with number
stack traceback:
    [string "function NameGen()..."]:14: in function 'NameGen'
    [string "function NameGen()..."]:23: in main chunk
    [C]: ?

我的代码:

function NameGen()
  preftest = math.random(100) ;
  syltest = math.random(100) ;
  sufftest = math.random(100) ;
  pref1 = "New ";
  _1syl1 = "Lon";
  _2syl1 = "Don";
  suff1 = " City";
  prefchoice = pref1;
  _1sylchoice = _1syl1;
  _2sylchoice = _2syl;
  suffchoice = suff1;

  if preftest < 50 and _2syltest < 50 and sufftest < 50 then
    cityname = prefchoice .. _1sylchoice .. _2sylchoice .. suffchoice;
  elseif preftest < 50 and _2syltest < 50 then
    cityname = prefchoice .. _1sylchoice .. _2sylchoice;
  else
    cityname = _1sylchoice;
  end
end
NameGen();
print(cityname);

最佳答案

我没有看到 _2syltest 被分配在哪里——只有 syltest 。如果 _2syltest 不是来自其他地方，那可能就是问题所在，因为这就是 if 中使用该值的条件。

关于random - 函数名Gen() : attempt to compare nil with number，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/18778163/