Merge pull request #2063 from fxjzz/master

Update 1047.

problems/1047.删除字符串中的所有相邻重复项.md

@@ -264,14 +264,15 @@ javaScript:
 
 ```js
 var removeDuplicates = function(s) {
-    const stack = [];
+    const result = []
-    for(const x of s) {
+    for(const i of s){
-        let c = null;
+        if(i === result[result.length-1]){
-        if(stack.length && x === (c = stack.pop())) continue;
+            result.pop()
-        c && stack.push(c);
+        }else{
-        stack.push(x);
+            result.push(i)
+        }
     }
-    return stack.join("");
+    return result.join('')
 };
 ```