恭喜！

Python for Developers 入门

Jasmin Ludolf

Senior Data Science Content Developer

第 1 章回顾

# Define quantity
quantity = 10


# Single quotes
ingredient_name = 'pasta'


# Double quotes also work
ingredient_name = "pasta"

第 2 章回顾

ingredient_name = "Basil Leaves"


# Convert to lowercase
ingredient_name = ingredient_name.lower()

# List of ingredients
ingredients = ["pasta", "tomatoes", "garlic",
               "basil", "olive oil", "salt"]

# Get the value at the first index
ingredients[0]

# Creating a dictionary
recipe_dict = {"pasta": 500,
               "tomatoes": 400, 
               "garlic": 15,
               "basil": 20, 
               "olive oil": 30,
               "salt": 5}

# Create a set
ingredients_set = {"pasta", "tomatoes", "pasta", 
                   "basil", "garlic", "olive oil",
                   "salt"}

# Create a tuple
serving_sizes = (1, 2, 4, 6, 8)

第 3 章回顾

运算符	功能
`==`	等于
`!=`	不等于
`>`	大于
`>=`	大于等于
`<`	小于
`<=`	小于等于

关键字	功能	用法
`if`	条件满足则执行	流程中的第一步
`elif`	否则再判断条件	在 `if` 之后
`else`	以上都不满足则执行	在 `elif` 之后

第 3 章回顾

# Ingredients list
ingredients = ["pasta", "tomatoes", "garlic", "basil", "olive oil", "salt"]


# Loop through and print each ingredient
for ingredient in ingredients:

    print(ingredient)

pasta
tomatoes
garlic
basil
olive oil
salt

第 3 章回顾

ingredients_to_add = 5
items_added = 0

while items_added < ingredients_to_add:
    items_added += 1
    remaining = ingredients_to_add - items_added

    if remaining > 3:
        print("Several ingredients remaining")
    elif remaining >= 1:
        print("Almost done!")
    else:
        print("Shopping list complete!")

第 3 章回顾

关键字	功能
`and`	评估多条件是否都为真
`or`	评估是否有任一条件为真
`in`	判断值是否在数据结构中
`not`	判断值是否不在数据结构中

list.append()

后续步骤

其他内置函数
- zip()
- enumerate()
包与模块
- os
- time
- venv
- pandas
- requests
- numpy

编写自定义函数

DataCamp 的 Intermediate Python for Developers 课程

恭喜！

Python for Developers 入门