Unity5.x Time用法详解

captureFramerate	Slows game playback time to allow screenshots to be saved between frames.
deltaTime	The time in seconds it took to complete the last frame (Read Only). 上一帧完成所用的时间秒（只读）
fixedDeltaTime	The interval in seconds at which physics and other fixed frame rate updates (like MonoBehaviour's FixedUpdate) are performed. 在物理和固定帧更新的时间间隔秒（类似MonoBehavior's FixedUpdate）
fixedTime	The time the latest FixedUpdate has started (Read Only). This is the time in seconds since the start of the game. 最近的一次FixedUpdate已开始的时间（只读）自游戏开始计时，以秒记。
frameCount	The total number of frames that have passed (Read Only). 已经执行的帧率的总数。
maximumDeltaTime	The maximum time a frame can take. Physics and other fixed frame rate updates (like MonoBehaviour's FixedUpdate). 在物理帧和其他帧更新中，一帧能获取的最大时间。
realtimeSinceStartup	The real time in seconds since the game started (Read Only). 从游戏开始到现在所消耗的实时时间（只读）。
smoothDeltaTime	A smoothed out Time.deltaTime (Read Only). 一个平滑淡出的Time.deltaTime（只读）
time	The time at the beginning of this frame (Read Only). This is the time in seconds since the start of the game. 从游戏开始到现在所消耗的时间（只读）。
timeScale	The scale at which the time is passing. This can be used for slow motion effects. 时间的消耗速率，可以减慢运动效果。
timeSinceLevelLoad	The time this frame has started (Read Only). This is the time in seconds since the last level has been loaded. 从上次加载管卡完成到现在所用的时间（只读）
unscaledDeltaTime	The timeScale-independent time in seconds it took to complete the last frame (Read Only). 不受timeScale系数影响的deltaTime。
unscaledTime	The timeScale-independant time at the beginning of this frame (Read Only). This is the time in seconds since the start of the game. 不受timeScale系数影响的Time.time。

补充：

1.timeScale影响的是Time.deltaTime的值，但不影响Time.FixedDeltaTime.

2.timeScale影响FixedUpdate 的执行速率，但不影响Update和LateUpdate.

3.timeScale影响Time.time的值和Time.FixedTime的值。

所以 Time.timeScale=0 FixedUpdate的方法会停止执行，Update和LateUpdate会继续执行。

Time.timeScale=1 FixedUpdate的方法会继续执行。