Lua打印对象

骑猪看日落 2023-10-05 04:16 38阅读 0赞

# Lua打印对象 #

---
    -- @function: 获取table的字符串格式内容，递归
    -- @tab： table
    -- @ind：不用传此参数，递归用（前缀格式（空格））
    -- @return: format string of the table
    function dumpTab(tab,ind)
      if(tab==nil)then return "nil" end;
      local str="{";
      if(ind==nil)then ind="  "; end;
      --//each of table
      for k,v in pairs(tab) do
        --//key
        if(type(k)=="string")then
          k=tostring(k).." = ";
        else
          k="["..tostring(k).."] = ";
        end;--//end if
        --//value
        local s="";
        if(type(v)=="nil")then
          s="nil";
        elseif(type(v)=="boolean")then
          if(v) then s="true"; else s="false"; end;
        elseif(type(v)=="number")then
          s=v;
        elseif(type(v)=="string")then
          s="\""..v.."\"";
        elseif(type(v)=="table")then
          s=dumpTab(v,ind.."  ");
          s=string.sub(s,1,#s-1);
        elseif(type(v)=="function")then
          s="function : "..v;
        elseif(type(v)=="thread")then
          s="thread : "..tostring(v);
        elseif(type(v)=="userdata")then
          s="userdata : "..tostring(v);
        else
          s="nuknow : "..tostring(v);
        end;--//end if
        --//Contact
        str=str.."\n"..ind..k..s.." ,";
      end --//end for
      --//return the format string
      local sss=string.sub(str,1,#str-1);
      if(#ind>0)then ind=string.sub(ind,1,#ind-2) end;
      sss=sss.."\n"..ind.."}\n";
      return sss;--string.sub(str,1,#str-1).."\n"..ind.."}\n";
    end;--//end function
    
    --//网摘,直接打印到屏幕
    function printTable(t, n)
      if "table" ~= type(t) then
        return 0;
      end
      n = n or 0;
      local str_space = "";
      for i = 1, n do
        str_space = str_space.."  ";
      end
      print(str_space.."{");
      for k, v in pairs(t) do
        local str_k_v
        if(type(k)=="string")then
          str_k_v = str_space.."  "..tostring(k).." = ";
        else
          str_k_v = str_space.."  ["..tostring(k).."] = ";
        end
        if "table" == type(v) then
          print(str_k_v);
          printTable(v, n + 1);
        else
          if(type(v)=="string")then
            str_k_v = str_k_v.."\""..tostring(v).."\"";
          else
            str_k_v = str_k_v..tostring(v);
          end
          print(str_k_v);
        end
      end
      print(str_space.."}");
    end
    
    --//test code
    b={[printTable]=1,[dumpTab]=33}
    a={inter={ext=1000,uuid="432-43243-43124324",inter2={ext=1000,uuid="432-43243-43124324",[printTable]=2},"anil",nil},"fda",fdsaf,true};
    
    local sa=dumpTab(b);
    print(sa);
    
    sa=dumpTab(a);
    print(sa);
    
    printTable(a)
    printTable(b)