How to read the number in csv in python

In Python, steps to read the nth number from a CSV file using the csv module: Import the csv module. Open the CSV file. Loop through the lines in the file and extract the nth number. Print or process the extracted value.

How to read the nth number from a CSV file using Python

In Python, we can use csv module easily reads data from CSV files. Here are the steps on how to read the nth number in a CSV file:

1. Import the necessary modules

<code class="python">import csv</code>

2. Open the CSV file

<code class="python">with open('data.csv', 'r') as f:
    reader = csv.reader(f)</code>

3. Loop through the rows in a CSV file

<code class="python">for row in reader:
    # 提取第 n 个数
    value = row[n - 1]</code>

4. Print or process the extracted values

For example, to print the 3rd number, you can use the following code:

<code class="python">print(value)</code>

Full example:

<code class="python">import csv

with open('data.csv', 'r') as f:
    reader = csv.reader(f)
    for row in reader:
        value = row[2 - 1]
        print(value)</code>

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