Python is a powerful programming language that is widely used in various fields such as data analysis, artificial intelligence, and website development. It has concise and easy-to-read syntax and rich libraries, making programming simple and efficient. If you want to better master Python and start your own innovation journey, you might as well try some specific code examples.
import pandas as pd import matplotlib.pyplot as plt data = {'Name': ['Alice', 'Bob', 'Cathy', 'David'], 'Age': [25, 30, 35, 40]} df = pd.DataFrame(data) plt.bar(df['Name'], df['Age']) plt.xlabel('Name') plt.ylabel('Age') plt.title('Age Distribution') plt.show()
import requests from bs4 import BeautifulSoup url = 'http://example.com' response = requests.get(url) soup = BeautifulSoup(response.content, 'html.parser') print(soup.prettify())
from sklearn.datasets import load_iris from sklearn.model_selection import train_test_split from sklearn.ensemble import RandomForestClassifier from sklearn.metrics import accuracy_score iris = load_iris() X, y = iris.data, iris.target X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42) model = RandomForestClassifier() model.fit(X_train, y_train) predictions = model.predict(X_test) print('Accuracy:', accuracy_score(y_test, predictions))
Through these simple examples, you can experience Python in data analysis and network crawling
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