從創建Xcode項目的第一集開始，直到第八集讓小蛇爬行起來。將來要增加蛇吃果果長大。

還有最後三集請看下麵的鏈接。

金拇指課堂 Golden Thumb Classroom

Snake Game | Draw grid in Xcode

Snake Game | Print empty board

Snake Game | Print board with labels

Snake Game | Print the snake

Snake Game | Draw the snake

Snake Game | Move snake

Snake Game | Refactor snake moving functions and unit test them with XCTAssertEqual

Snake Game | Add 4 buttons to move the snake

Snake Game | Show a static fruit

Snake Game | Grows after eating fruit

Snake Game | Randomize fruit location