Learn Python Online in 100 Days - Week 2, Day 3

May 7, 2023#python学习99

AI Translation

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AI-generated summary

The person is talking about how their learning has been delayed due to the May Day holiday. They mention that learning makes them progress and brings them happiness. They then provide a summary of the previous lesson, discussing different data types in Python and mathematical symbols for calculations. They also mention the use of the round function for rounding numbers. They find calculating tips to be interesting and mention using a calculator. They provide a code for a tip calculator that asks for input on spending, tip percentage, and number of people, and then calculates the amount owed per person.

Because of the May Day holiday, this study has been delayed for a long time. Learning makes me progress, learning makes me happy.

Record#

Review the content of the previous class. Numbers with decimal points are float types. Integers are int types.
Perform calculations using mathematical symbols in Python: + - * / ** % //. Addition, subtraction, multiplication, division, exponentiation, modulus, floor division.
round function: rounding function.
round(_number_, _ndigits=None_). Returns the value of _number_ rounded to _ndigits_ decimal places. If _ndigits_ is omitted or None, it returns the nearest integer to the input value.
Calculating tips is interesting. For someone who has never encountered it before, this calculation method is very strange. No wonder a calculator is needed, haha!

CODE#

print("Tip Calculator")
spend = float(input("How much did you spend? "))
tip = float(input("What percentage do you want to tip? "))
people = int(input("How many people in your group? "))
# owe = round(((spend + tip) / people), 2)

bill_with_tip = tip / 100 * spend + spend
bill_per_person = bill_with_tip / people
owe = round(bill_per_person, 2)

print("You each owe $", owe)