Variables Assignment, Math Ops and Data Types是變數賦值、數學運算與資料類型。
學習4種定義東西跟他的屬性的基礎語法。
- String(str）：字串
- 用單引號（’ ’）或是雙引號（” ”）包起來的
- 如果要連結英文字，用底線（_）
- 用途：顯示公司名稱
- Floating Point(float)：浮點數
- 帶有小數點的實數除以整數部分和小數
- integer(int）：整數
- 顯示整數，不包含小數點
- boolean(bool)：布林值，代表有兩種可能（true or false）
- type：種類
- 用來檢查屬性，會把某個資料的屬性顯示出來
練習
Assume that you have $5000 in your brokerage account and you decided to invest the entire amount in Procter & Gamble (P&G) stock which is trading at $142.5 per share. Complete the following tasks:
- 1. Write a Python code that defines two variables for the account balance and P&G stock price. Feel free to select any valid variable names
- 2. Confirm variables datatypes
- 3. Calculate number of shares that you can buy with the available balance in your account
# Define the account balance
balance = 5000
balance# Confirm the datatype which is integer
type(balance)# Define the price per share
price = 142.5
price# Confirm the datatype which is float
type(price)# Calculate the number of shares by dividing the brokerage balance by P&G stock price
# Place the answer in num_shares
num_shares = balance/price
num_shares # Calculate the number of shares by dividing the brokerage balance by P&G stock price
# Place the answer in num_shares
num_shares = balance/price
num_shares # Note that you can round your answer to the nearest integer by using the round function
round(num_shares)你好，我是蔡至誠PG，任職於《阿爾發證券投顧》，《我畢業五年，用ETF賺到400萬》作者，《提早五年退休：PG 財經個人財務調配術》講師。