diff --git a/problems/0018.四数之和.md b/problems/0018.四数之和.md
index 3e6e1a41..6f541ad6 100644
--- a/problems/0018.四数之和.md
+++ b/problems/0018.四数之和.md
@@ -262,10 +262,11 @@ class Solution {
             
             for (int j = i + 1; j < nums.length; j++) {
 
-		        //  nums[i] >= 0 && nums[i] + nums[j] > target  剪枝操作
-                if (nums[i] >= 0 && nums[i] + nums[j] > target) {
-                    break;
-                }
+
+		// nums[i]+nums[j] > target 直接返回, 剪枝操作
+		            if (nums[i]+nums[j] > 0 && nums[i]+nums[j] > target) {
+		                break;
+		            }
 
 
                 if (j > i + 1 && nums[j - 1] == nums[j]) {  // 对nums[j]去重