《python語言設計程式設計》_第一章編程題

標籤：goto   pen   end   turtle   程式設計   imp   bsp   就會   不一致   

題目1.1 ：顯示"welcome to python "

答案：print(‘welcome to python‘)

題目1.2：顯示"welcome to python " 五次

答案：print ("welcome to python\n") * 5  #\n表示換行，要是沒有\n的話就會串連在一起

題目1.3:編寫fun，其中fun是分別有fun組成。

答案：#注意，"N"，"N"和”NN"長度不一致

print ("F"*7," "*3,"U"," "*5,"U"," "*3,"N"*2," "*4,"N"*2)
print ("F"*2," "*4," "*3,"U"," "*5,"U"," "*3,"N"*3," "*3,"N"*2)
print ("F"*7," "*3,"U"," "*5,"U"," "*3,"N"*2,"","N"*1," "*1,"N"*2)
print ("F"*2," "*4," "*3,"","U"," "*3,"U"," "*4,"N"*2," "*2,"N","N"*2)
print ("F"*2," "*4," "*5,""*3,"U"*3," "*2," "*3,"N"*2," "*3,"N"*3)

 題目1.4：編寫程式顯示下面的表格（類似矩陣）

答案：#二位元和兩位元的長度不一樣，要根據資料的長度調整空格的長度

value= [1,2,3,4]
print ("a", " "*2, "a^2"," "*2,"a^3"," "*4,)
print ("1", " "*2, "1"," "*5,"1"," "*4)
print ("3", " "*2, "9"," "*5,"27"," "*4)
print ("4", " "*2, "16"," "*4,"64"," "*4)

題目：1.5編寫程式顯示下面運算式的結果：（9.5*4.5-2.5*3）/（45.5-3.5）

答案：print((9.5*4.5-2.5*3)/(45.5-3.5))

要是加上雙引號，即：

print("(9.5*4.5-2.5*3)/(45.5-3.5)")

那顯示的是這個公式（9.5*4.5-2.5*3）/（45.5-3.5）

題目1.6 ：級數求和，編寫程式顯示1+2+3+4+5+6+7+8+9的和

答案：  #for之後那一列（可能是幾列）要縮排

sum = 0   

for i in range(10) 

  sum+=i 

print ( sum) 

題目1.7 ：（近似Π）可以使用下面的公式計算Π=4*（1-1/3+1/5-1/7+1/9-1/11+...），編寫程式顯示4*（1-1/3+1/5-1/7+1/9-1/11）和4*（1-1/3+1/5-1/7+1/9-1/11+1/13-1/15）

答案：#**表示次方

程式1：

pi = 0.0
for i in range(1,6):
pi += 4*(((-1)**(i+1))/(2*i-1))
print (pi)

程式2：

pi = 0.0
for i in range(1,8):
pi += 4*(((-1)**(i+1))/(2*i-1)) 
print (pi)

 1.8

顯示r=5.5的圓的面積和周長。

1.9；1.10；1.11不會

1.12

程式：#求更加簡單的分享

import turtle
turtle.forward(100)

turtle.right(90)
turtle.forward(100)

turtle.right(90)
turtle.forward(200)

turtle.right(90)
turtle.forward(200)

turtle.right(90)
turtle.forward(200)

turtle.right(90)
turtle.forward(100)

turtle.right(90)
turtle.forward(200)

turtle.left(90)
turtle.forward(100)

turtle.left(90)
turtle.forward(100)

turtle.left(90)
turtle.forward(200)

turtle.left(180)
turtle.forward(100)

 

 

程式2：

import turtle
turtle.penup()
turtle.goto(-50,0)
turtle.pendown()
turtle.forward(100)
turtle.penup()
turtle.goto(0,50)
turtle.right(90)
turtle.pendown()
turtle.forward(100)

程式3：#注意轉折處的角度

import turtle
turtle.right(60)
turtle.forward(100)
turtle.right(120)
turtle.forward(100)
turtle.right(120)
turtle.forward(100)

 

程式4：

import turtle
turtle.right(60)
turtle.forward(100)
turtle.right(120)
turtle.forward(100)
turtle.right(120)
turtle.forward(200)
turtle.left(120)
turtle.forward(100)
turtle.left(120)
turtle.forward(100)

 

 

 好無聊，改天再畫

 

《python語言設計程式設計》_第一章編程題