Merge pull request youngyangyang04#1375 from Jerry-306/patch-56

纠正 0046.全排列 TS 版本代码

problems/0046.全排列.md

@@ -341,7 +341,7 @@ function permute(nums: number[]): number[][] {
     return resArr;
     function backTracking(nums: number[], route: number[]): void {
         if (route.length === nums.length) {
-            resArr.push(route.slice());
+            resArr.push([...route]);
             return;
         }
         let tempVal: number;