[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/functional/81_skip_spaces.sy

@@ -0,0 +1,22 @@
+// ???  // ????
+  				// ?????
+/*
+
+int main() {
+  int arr[100], i = 0, sum = 0;
+  while (getint()) {
+  	arr[i] = getint();
+    i = i + 1;
+  }*/
+int main() {
+  int arr[100], i = 0, sum = 0;
+  while (getint()) {
+  	arr[i] = getint();
+    i = i + 1;
+  }
+	while (i) {
+    i = i - 1;
+    sum = sum + arr[i];
+  }
+  return sum % 79;
+}