Python Language Design Program-Chapter One programming problem

Topic 1.1: Show "Welcome to Python"

Answer: Print (' Welcome to Python ')

Topic 1.2: Show "Welcome to Python" five times

Answer: Print ("Welcome to Python\n") * 5 #\n means line break, if not, it will be connected together.

Topic 1.3: Writing fun, where fun is composed of fun.

Answer: #注意, "n", "N" and "NN" lengths are inconsistent

Print ("F" *7, "" "* *," U "," "", "" U "," "" * *, "n" * *, "", "n" * *)
Print ("F" * *, "" "," "" "" "" "" "" "," "" "" "" "" "U", "" "" "", "" "" "" "," "" * * *)
Print ("F" *7, "" "*," U "," "", "" U "," "" "", "N" * *, "", "N" * *, "" * *, "n" * *)
Print ("F" * *, "" "," "" "", "" "," "", "" "", "" "" "," "" "" "" "" "" "" "" "" "" * * * * * *, "" * * *, "n"
Print ("F" * *, "" "," "", "" "," "", "" "" * *, "" * *, "" * *, "" * "* *," "" "" N "* *)

Topic 1.4: Programming shows the following table (similar matrix)

Answer: #二位数和两位数的长度不一样 to adjust the length of the space according to the length of the data

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

Title: 1.5 The program shows the result of the following expression: (9.5*4.5-2.5*3)/(45.5-3.5)

Answer: Print ((9.5*4.5-2.5*3)/(45.5-3.5))

If you add double quotation marks, that is:

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

That shows the formula (9.5*4.5-2.5*3)/(45.5-3.5)

Topic 1.6: Progression summation, programming shows 1+2+3+4+5+6+7+8+9 and

Answer: #for之后那一列 (may be a few columns) to indent

sum = 0

For I in range (10)

Sum+=i

Print (sum)

Topic 1.7: (approximate π) can be calculated using the following formula Π=4* (1-1/3+1/5-1/7+1/9-1/11+ ... ), programmed to show 1-1/3+1/5-1/7+1/9-1/11 and 1-1/3+1/5-1/7+1/9-1/11+1/13-1/15

Answer: #** means the second party

Program 1:

Pi = 0.0
For I in Range (1,6):
Pi + = ((( -1) * * (I+1))/(2*I-1))
Print (PI)

Program 2:

Pi = 0.0
For I in Range (1,8):
Pi + = ((( -1) * * (I+1))/(2*I-1))
Print (PI)

1.8

Displays the area and perimeter of the r=5.5 circle.

1.9;1.10;1.11 won't

1.12

Program: #求更加简单的分享

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)

Program 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)

Program 3: #注意转折处的角度

Import Turtle
Turtle.right (60)
Turtle.forward (100)
Turtle.right (120)
Turtle.forward (100)
Turtle.right (120)
Turtle.forward (100)

Program 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)

It's so boring, I'll paint it sometime

Python Language Design Program-Chapter One programming problem