displaying data loaded by our function
时间: 2024-05-01 14:19:46 浏览: 8
Sure, I can help you with that! To display the data loaded by our function, we can simply use the `print()` function.
For example, let's say our function is called `load_data()` and it returns a list of numbers. We can display the data like this:
```
data = load_data()
print(data)
```
This will print the list of numbers to the console.
If the data is more complex, such as a dictionary or a nested list, we can use the `pprint` module to display it in a more readable format:
```
import pprint
data = load_data()
pprint.pprint(data)
```
This will print the data in a more structured and easy-to-read format.
相关问题
import cv2 import numpy as np img = cv2.imread(r"kaggle\working\Out\2_t.png") ## displaying data loaded by our function print(img)
这段代码似乎是想要读取一张图片并打印出来。不过有一些错误,下面是修改后的代码:
```python
import cv2
import numpy as np
img = cv2.imread("kaggle/working/Out/2_t.png") # 读取图片,注意路径使用正斜杠
print(img) # 打印读取的数据
```
这段代码需要 `numpy` 和 `OpenCV` 两个库的支持,如果你没有安装这两个库,可以使用以下命令进行安装:
```bash
pip install numpy opencv-python
```
curlopt_WRITEFUNCTION
CURLOPT_WRITEFUNCTION is a callback function that is used to write the data received from a cURL request. When a cURL request is made, the data received from the server is passed to the callback function specified by CURLOPT_WRITEFUNCTION. The callback function can then process the data in any way it wants, such as writing it to a file or displaying it on the screen.
The syntax for setting CURLOPT_WRITEFUNCTION is as follows:
```
curl_easy_setopt(CURL *handle, CURLOPT_WRITEFUNCTION, write_callback_function);
```
The write_callback_function should have the following signature:
```
size_t write_callback_function(char *ptr, size_t size, size_t nmemb, void *userdata);
```
The parameters of the write_callback_function are:
- ptr: A pointer to the data received from the server
- size: The size of each element of the data (usually 1)
- nmemb: The number of elements in the data
- userdata: A pointer to user-defined data that can be passed to the callback function
The write_callback_function should return the number of bytes processed. If the function returns a value less than the total size of the data, cURL will assume that there was an error and the transfer will be aborted.