EP.7 Python ສຳລັບຄົນ Laos

Functions: write once, use many times

def total(price, tax=0.10):
    return price + price * tax

print(total(50000))
print(total(20000, 0))

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EP.7 ຟັງຊັນ ແລະ OOP

Functions: write once, use many times

Stop copy-pasting code. Make a function.

def ໃຊ້ສ້າງຟັງຊັນ. ຄ່າທີ່ສົ່ງເຂົ້າໄປ ເອີ້ນວ່າ parameter, ແລະ return ສົ່ງຜົນລັບກັບຄືນມາ.

ຕົວຢ່າງນີ້ຄິດລາຄາລວມ ພ້ອມອາກອນ 10%.

ep07-functions.py

def total(price, tax=0.10):
    return price + price * tax

print(total(50000))
print(total(20000, 0))

ຜົນລັບ

55000.0
20000

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ຮຽນຕໍ່

Your first program: print()

print("ສະບາຍດີ ລາວ!")
print("ຂ້ອຍກຳລັງຮຽນ Python")

Write your first program in a single line!

Variables: boxes for your data

name = "ສົມພອນ"
age = 20
height = 1.68

print(name, age, height)

A variable is a labelled box that can hold anything.

if / else: let your program decide

age = 17

if age >= 18:
    print("ລົງທະບຽນໄດ້")
else:
    print("ຍັງນ້ອຍຢູ່")

How does a computer make decisions? With if.

for loops: repeat without retyping

for i in range(1, 6):
    print("ຮອບທີ", i)

Count from 1 to 5 with a single line of logic.