function xNargin
x = func(6)
y = func(3,5)

function c = func(a, b)
if(nargin == 1)
	c = a.^2;		% 當(dāng)調(diào)用語句只傳遞一個輸入?yún)?shù)給此函數(shù)時，執(zhí)行該語句
end
if(nargin == 2)
	c = a + b;		% 當(dāng)調(diào)用語句傳遞兩個輸入?yún)?shù)給此函數(shù)時，執(zhí)行該語句
end