将计时器更改为3位小数

Question

我有一个从3开始的倒计时器，并倒计时到0.我试图让它将计时器显示为3位小数。这样用户就可以看到毫秒倒计时。例如：2.765等。

local function choice ( event )
    randCircle = circle[ math.random( #circle ) ]
    randCircle:setFillColor(1,0,0);

    local timeLimit = 3.000
        timeLeft = display.newText(timeLimit, randCircle.x, randCircle.y, native.systemFontBold, 36)
        timeLeft:setTextColor( 0,0,0 )
        sceneGroup:insert( timeLeft )

        local function timerDown()
           timeLimit = timeLimit - 1
           timeLeft.text = timeLimit
             if( timeLimit == 0 )then
                print( "Time Out" ) -- or do your code for time out
            end
        end
    aTimer = timer.performWithDelay( 1000,timerDown,timeLimit ) 

end
timer.performWithDelay( 2000, choice, 0 )

Answer 1

尝试：

display.newText(string.format("%.3f",timeLimit),...