Where to find the parameter of the function Draw() of TF2 class?

I want to plot a figure use the function Draw() of TF2 class ?, but i can not find the parameter used by
this function, where can i find it?

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ROOT Version: 6.22/06
Platform: ubuntu20.04
Compiler: gcc9.3.0

Basically they are the same as those for a TH2.

TH2 class is about 2-Dim histogram, how many kinds of figure did the TH2 class can plot?
in TF2::Draw() with parameter=surf4, the figure like this:
surface4.pdf (1.7 MB)

when the parameter=cont1z, the figure like this:
contour.pdf (81.1 KB)

are there any other parameters?

When you draw a TF2 a TH2 is created (you can get it with GetHistogram()). So all the drawing options available for TH2 are also available for TF2. Look at the link I sent you.