freeCodeCamp/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/basics-of-numpy.md

---
id: 5e9a0a8e09c5df3cc3600ed3
title: Numpy 的基础知识
challengeType: 11
videoId: f9QrZrKQMLI
bilibiliIds:
  aid: 763014202
  bvid: BV1K64y1a7bu
  cid: 409025169
dashedName: basics-of-numpy
---

# --question--

## --text--

以下代码将打印出什么？

```python
b = np.array([[1.0,2.0,3.0],[3.0,4.0,5.0]])
print(b)
```

## --answers--

```python
[[1.0 2.0 3.0]
[3.0 4.0 5.0]]
```

---

```python
[[1. 2. 3.]
[3. 4. 5.]]
```

---

```python
[[1. 3.]
[2. 4.]
[3. 5.]
```

## --video-solution--

2