提升lua代码效率

local test = {}
    for i = 10, 10000 do
        test[ i ] = {}
    end

    local t1 = os.clock( )
    for i = 1, 100000 do
        test[ 1000 ].mValue = 100
    end
    local t2 = os.clock( ) - t1
    Misc.Trace( "cost - " .. t2 )

    t1 = os.clock( )
    local d = test[ 1000 ]
    for i = 1, 100000 do
        d.mValue = 100
    end
    t2 = os.clock( ) - t1
    Misc.Trace( "cost - " .. t2 )