Dictionaries | Intro to CS - Python | Khan Academy скачать в хорошем качестве

Dictionaries | Intro to CS - Python | Khan Academy

Learn how to use dictionaries to store data in key-value pairs. Define a new dictionary with curly brackets and access a value using its key. Write dictionary assignment statements to update and add key-value pairs. View the program used in this video at: https://www.khanacademy.org/python-pr... Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now with our Intro to Computer Science - Python course! Course link: https://www.khanacademy.org/computing... Course playlist:    • Intro to Computer Science - Python | Khan ...   Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?ut... Volunteer here: https://www.khanacademy.org/contribut... TIMESTAMPS: 00:00 : storing structured data 00:25 : what is a dictionary? 00:43 : syntax - defining a dictionary 01:15 : unordered data 01:37 : accessing values 02:17 : updating values 03:07 : what data types can I use? 03:30 : when should I use dictionaries?