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Merge pull request youngyangyang04#1666 from initialqing/master

Update 0129.求根节点到叶节点数字之和.md

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Original file line number	Diff line number	Diff line change
`@@ -320,8 +320,11 @@ TypeScript:`
`320`	`320`	```typescript
`321`	`321`	`function sumNumbers(root: TreeNode \| null): number {`
`322`	`322`	`if (root === null) return 0;`
	`323`	`+ // 记录最终结果`
`323`	`324`	`let resTotal: number = 0;`
	`325`	`+ // 记录路径中遇到的节点值`
`324`	`326`	`const route: number[] = [];`
	`327`	`+ // 递归初始值`
`325`	`328`	`route.push(root.val);`
`326`	`329`	`recur(root, route);`
`327`	`330`	`return resTotal;`
`@@ -342,6 +345,7 @@ function sumNumbers(root: TreeNode \| null): number {`
`342`	`345`	`};`
`343`	`346`	`}`
`344`	`347`	`function listToSum(nums: number[]): number {`
	`348`	`+ // 数组求和`
`345`	`349`	`return Number(nums.join(''));`
`346`	`350`	`}`
`347`	`351`	`};`

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