# [118. Pascal's Triangle](https://leetcode.com/problems/pascals-triangle/


## 题目

Given a non-negative integer numRows, generate the first numRows of Pascal's triangle.

![](https://upload.wikimedia.org/wikipedia/commons/0/0d/PascalTriangleAnimated2.gif)

**Note:** In Pascal's triangle, each number is the sum of the two numbers directly above it.

**Example:**

```
Input: 5
Output:
[
     [1],
    [1,1],
   [1,2,1],
  [1,3,3,1],
 [1,4,6,4,1]
]
```

## 题目大意

给一个正整数来生成一个帕斯卡三角形

## 解题思路