（一）程序結構

1,順序結構  

Note in the table below,A special form of assignment operation 

 2,選擇結構

#if-elseCan be simplified with conditional expressions
print("恭喜中獎" if number==987456 else "未中獎")

 3,循環結構

 range(n,m)函數,產生一個[n,m)的整數序列,包含n但不包含m;

 range(stop): 從0到(stop-1)的數

 range(start,stop,step):從start到(stop-1),步長為step

for i in "hello" ：

        print(i)   #Output each letter

  也是循環,Traversing objects are strings

 while循環,In the statement block, add a statement that changes the loop variable,例如：i++

 print():Output newlines directly（There are no parameters in parentheses）

for i in range(1, 6):
for j in range(1, i+1):
print("*", end="")
print() #Print out a right triangle
for i in range(1,6):
for j in range(1,7-i):
print("*",end="")
print() #輸出倒直角三角形
for i in range(1,6):
#倒直角三角形
for i in range(1,6):
for j in range(1,6-i):
print("&",end="")
print()
#1,3,5,7的三角形
for k in range(1,i*2):
print("*",end="")
#換行
print() #輸出等腰三角形

 （二）跳轉語句

 1,break語句

 2,continue語句 

 （三）空語句pass

#判斷閏年平年
year=eval(input("Please output a four-digit year"))
if(year%==0 and year%100!=0) or (year%400==0):
print(year,"是閏年")
else:
print(year,"不是閏年")

#模擬10086查詢功能
#（1）初始化變量
answer="y"
#(2)Loop plus conditional judgment
while answer=="y":
print("--------Welcome to the query function---------")
print("1,查詢當前余額")
print("2,Query the current remaining traffic")
print("3,Query the current remaining call duration")
print("0,退出系統")
choice=input("輸入執行操作")
if choice=="1":
print("當前余額:450")
elif choice=="2":
print("當前剩余流量：4G")
elif choice=="3":
print("Remaining call time:300min")
elif choice=="0":
print("程序退出,感謝使用")
break
else:
print("輸入有誤,重新輸入")
#(3)改變變量
answer=input("continue opcode？y/n")
print("程序退出,謝謝使用")

#輸出九九乘法表
for i in range(1,10):
for j in range(1,i+1):
print(str(j)+"*"+str(i)+"="+ str(i*j),end="\t")
print()

#猜數游戲
import random
rand=random.randint(1,100)
count=1 #記錄猜的次數
while count<=10:
number=eval(input("輸入猜的數"))
if number==rand:
print("猜對了")
break
elif number>rand:
print("偏大")
else:
print("偏大")
count+=1
#判斷次數
if count <=3:
print("聰明",count,"次數")
elif count<=6:
print("還可以",count,次數)
else:
print("次數偏多",count,次數)