[backend]将testdata/下的测例替换为了赛方测试用例，更新了测试脚本

testdata/h_functional/22_matrix_multiply.sy

@@ -0,0 +1,60 @@
+const int MAX_SIZE = 100;
+int a[MAX_SIZE][MAX_SIZE], b[MAX_SIZE][MAX_SIZE];
+int res[MAX_SIZE][MAX_SIZE];
+int n1, m1, n2, m2;
+void matrix_multiply() {
+    int i = 0;
+    while (i < m1) {
+        int j = 0;
+        while (j < n2) {
+            int k = 0;
+            while (k < n1) {
+                res[i][j] = res[i][j] + a[i][k] * b[k][j];
+                k = k + 1;
+            }
+            j = j + 1;
+        }
+        i = i + 1;
+    }
+}
+int main()
+{
+    int i, j;
+	m1 = getint();
+	n1 = getint();
+    i = 0;
+    while (i < m1) {
+        j = 0;
+        while (j < n1) {
+            a[i][j] = getint();
+            j = j + 1;
+        }
+        i = i + 1;
+    }
+	m2 = getint();
+	n2 = getint();
+    i = 0;
+    while (i < m2) {
+        j = 0;
+        while (j < n2) {
+			b[i][j] = getint();
+            j = j + 1;
+        }
+        i = i + 1;
+    }
+    matrix_multiply();
+    i = 0;
+    while (i < m1) {
+        j = 0;
+        while (j < n2) {
+			putint(res[i][j]);
+			putch(32);
+            j = j + 1;
+        }
+        putch(10);
+        i = i + 1;
+    }
+    return 0;
+}
+
+