EP.1 Python ສຳລັບຄົນ Laos

Your first program: print()

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

Video coming soon

EP.1 ພື້ນຖານ

Your first program: print()

Write your first program in a single line!

print() ແມ່ນຄຳສັ່ງທີ່ໃຫ້ Python ສະແດງຂໍ້ຄວາມອອກໜ້າຈໍ. ຂໍ້ຄວາມທີ່ຢູ່ໃນເຄື່ອງໝາຍ " " ເອີ້ນວ່າ string.

Python ອ່ານໂຄດຈາກເທິງລົງລຸ່ມ ເທື່ອລະແຖວ, ສະນັ້ນ print 2 ແຖວ ກໍຈະໄດ້ຂໍ້ຄວາມ 2 ແຖວ.

ep01-hello-world.py

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

ຜົນລັບ

ສະບາຍດີ ລາວ!
ຂ້ອຍກຳລັງຮຽນ Python

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ຮຽນຕໍ່

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.

Lists: many things in one place

cities = ["ວຽງຈັນ", "ຫຼວງພະບາງ", "ປາກເຊ"]
cities.append("ສະຫວັນນະເຂດ")

print(cities[0])
print(len(cities))

Can one variable hold many items? Yes, with a list.