问题
I want to generate the number 2 5 times and the number 1 10 times. I'm trying to spread these across a String Grid in Delphi randomly. I also want to fill the rest of the grid that isn't 1 or 2, with 0's. I have no idea how to even start here.
It would look something like this (P stands for player and there would only be 5 2's and 10 1's): https://gyazo.com/aeef05c3a92ce7847c0f42ad40faa733
回答1:
Given a grid with dimensions m×n, create an array of length m * n. Put five 2's and 10 1's in the array, and fill the remainder with 0's. (We'll assume the product of m and n is at least 15.) Shuffle the array. Copy each element of the shuffled array into successive cells in the grid.
回答2:
While the approach represented in Robs answer will do the job I personally think it is way to complicated for it's purpose.
So what would be more simpler approach?
Well your goal is to place these numbers at random positions in grid.
How do you determine position of some object in a grid? You do it by its X (Column) and Y (Row) coordinates.
So how do you get random position in a grid? Simple chose two random values for X and Y coordinates.
As for placing certain numbers of number 1 and number 2 use two simple loops.
来源：https://stackoverflow.com/questions/41857117/how-to-generate-a-certain-amount-of-numbers-and-spread-them-randomly-across-a-gr