一，python語法8要素#!/usr/bin/env python3
print("hello world")
#資料型別
int("45")
str(912)
#使用"hard times"[5]
#物件引用
x = "bule"
y = "green"
z = x
#元組使用逗號建立
tuple = ("denmark", "finland", "norway","sweden")
#in, not in 成員操作符
p = (4, "frog", 9, -33, 9, 2)
2 in p
"dog" not in p
#邏輯運算子 and or not,返回決定結果的運算元，不返回bool值
five = 5
two = 2
zero = 0
five and two
two and five
five and zero
#if語句
lines = 500
if lines < 1000:
print("small")
elif lines < 10000:
print("medium")
else :
print("large")
#while語句
while true:
item = get_next_item()
if not item:
break
process_item(item)
#for in語句
countries = ["denmark", "finland", "norway","sweden"]
for countrie in countries:
print(countrie)
#算數操作符+,-,*,/
5 + 6
#輸出print
print("type interges, each followed by enter; or just enter tofinish")
total = 0
count = 0
while true:
line = input("integer:")
if line:
try:
number = int (line)
except valueerror as error:
print(error)
continue
total += number
count += 1
else:
break
if count:
print("count = ", count,"total = ", total, "mean = ", total / count)
#函式建立及呼叫
def get_int(msg):
while true:
try:
i = int(input(msg))
return i
except valueerror as err:
print(err)
age = get_int("enter your age:")
#匯入模組improt
import random
x = random.randint(1, 6)
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