[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/04_break_continue.sy

@@ -0,0 +1,39 @@
+int main() {
+  int sum = 0;
+  int i = 0;
+  while(i < 20) {
+    int j = 0;
+    while (j < 10) {
+      int k = 0;
+      while (k < 5) {
+        int m = 0;
+        while (m < 3) {
+          if (m + 1 >= 3)
+            if (m)
+              if (m || !m)
+                if (m - -1 >= 3)
+                  {{{{;;break;continue;}}}}
+          int n = 0;
+          while (n < 2) {
+            n = n + 1;
+            continue;
+            break;
+            sum = sum + 1;
+          }
+          m = m + 1;
+          sum = sum + 1;
+        }
+        while(1) {        
+          while(1) break;
+          break;
+        }
+        k = k + 1;
+      }
+      j = j + 1;
+      continue;
+      j = j + 1;
+    }
+    i = i + 1;
+  }
+  return sum;
+}