Matlab switch如何用

switch 表达式
case 值1
语句1
case 值2
语句2
.......
otherwise
语句n
end

k = menu('please choose a number', '1', '4');

switch k
case 1
a = -10; b = 10;
result = a + (b-a) * rand(1);
case 4
a = 0; b = 1;
result = a + sqrt(b) * randn(1);
end

disp(result);

这两例子你看看