feat(Go-StudyExample): 新增 网络及端口测试、传值和传址的比较、切片测试、Map测试、通道测试、测试init调用、测试error、defer关键字、recover测试、测试携程的异常捕获、矩阵旋转

example/problem/MatrixRotation.go

@@ -0,0 +1,70 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 15:08
+ *  @Description：矩阵旋转问题解决(这个是之前在2048游戏里面)
+ */
+
+package problem
+
+import "fmt"
+
+const (
+	SIZE = 4
+)
+
+func MatrixRotationTest() {
+	//矩阵旋转.....
+	e := [SIZE][SIZE]int{{0, 1, 2, 3}, {4, 5, 6, 7}, {8, 9, 10, 11}, {12, 13, 14, 15}}
+	MatrixRotation(e)
+	MatrixRotationAnti(e)
+	MatrixRotationHalfCircle(e)
+	MatrixRotationAntiHalfCircle(e)
+}
+
+//矩阵旋转-逆时针旋转90度
+func MatrixRotationAnti(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[SIZE-j-1][i] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
+
+//顺时针旋转90度
+func MatrixRotation(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[j][SIZE-1-i] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
+
+//矩阵逆时针旋转180度 --顺逆时针结果一致
+func MatrixRotationAntiHalfCircle(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[SIZE-1-i][SIZE-1-j] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
+
+//矩阵顺时针旋转180度
+func MatrixRotationHalfCircle(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[SIZE-1-i][SIZE-1-j] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}