m

Author: ityard

yeke/README.md

@@ -15,6 +15,7 @@
 + [py-sun](https://github.com/JustDoPython/python-examples/tree/master/yeke/py-sun) ：用 Python 动态模拟太阳系的运转
 + [py-aljx](https://github.com/JustDoPython/python-examples/tree/master/yeke/py-aljx) ：阿里注册了新公司京西，用 Python 看看网友怎么说
 + [py-teacher](https://github.com/JustDoPython/python-examples/tree/master/yeke/py-teacher) ：用 Python 为老师送上节日的祝福
++ [py-flag](https://github.com/JustDoPython/python-examples/tree/master/yeke/py-flag) ：用 Python 画了几个国家的国旗
 
 ---
 

yeke/py-flag/__init__.py

@@ -0,0 +1,73 @@
+import turtle
+
+# 画条纹
+def drawSquar():
+    turtle.color('black', 'red')
+    turtle.begin_fill()
+    for i in range(7):
+        turtle.forward(600)
+        turtle.left(90)
+        turtle.forward(350 / 13)
+        turtle.left(90)
+        turtle.forward(600)
+        turtle.right(90)
+        turtle.forward(350 / 13)
+        turtle.right(90)
+    turtle.end_fill()
+# 画左上角的小矩形
+def drawSmallsqure():
+    turtle.color('blue')
+    turtle.begin_fill()
+    turtle.left(90)
+    turtle.forward(350 / 2)
+    turtle.left(90)
+    turtle.forward(300)
+    turtle.left(90)
+    turtle.forward(350 * 7 / 13)
+    turtle.left(90)
+    turtle.forward(300)
+    turtle.end_fill()
+# 画左上角的星星
+def drawSrarts():
+    x = -10
+    y = 0
+    for k in range(4):
+        x = -15
+        for i in range(6):
+            turtle.goto(x, y)
+            turtle.color('white')
+            turtle.begin_fill()
+            for j in range(5):
+                turtle.left(144)
+                turtle.forward(20)
+            x -= 50
+            turtle.end_fill()
+        y += 350 / 13 * 2
+    x = -10
+    y = 350 / 13
+    for i in range(3):
+        x = -35
+        for j in range(5):
+            turtle.goto(x, y)
+            turtle.color('white')
+            turtle.begin_fill()
+            for k in range(5):
+                turtle.left(144)
+                turtle.forward(20)
+            x -= 50
+            turtle.end_fill()
+        y += 350 / 13 * 2
+turtle.setup(0.8, 0.8, -100, -100)
+turtle.speed(10)
+turtle.pu()
+turtle.forward(300)
+turtle.left(90)
+turtle.forward(350 / 2)
+turtle.left(90)
+drawSquar()
+turtle.home()
+drawSmallsqure()
+turtle.home()
+drawSrarts()
+turtle.hideturtle()
+turtle.done()

yeke/py-flag/america_flag.py

@@ -0,0 +1,55 @@
+import turtle
+
+turtle.setup(600,400,0,0)
+turtle.bgcolor("red")
+turtle.fillcolor("yellow")
+turtle.color('yellow')
+turtle.speed(10)
+# 主星
+turtle.begin_fill()
+turtle.up()
+turtle.goto(-280,100)
+turtle.down()
+for i in range (5):
+    turtle.forward(150)
+    turtle.right(144)
+turtle.end_fill()
+# 副星
+turtle.begin_fill()
+turtle.up()
+turtle.goto(-100,180)
+turtle.setheading(305)
+turtle.down()
+for i in range (5):
+    turtle.forward(50)
+    turtle.left(144)
+turtle.end_fill()
+turtle.begin_fill()
+turtle.up()
+turtle.goto(-50,110)
+turtle.setheading(30)
+turtle.down()
+for i in range (5):
+    turtle.forward(50)
+    turtle.right(144)
+turtle.end_fill()
+turtle.begin_fill()
+turtle.up()
+turtle.goto(-40,50)
+turtle.setheading(5)
+turtle.down()
+for i in range (5):
+    turtle.forward(50)
+    turtle.right(144)
+turtle.end_fill()
+turtle.begin_fill()
+turtle.up()
+turtle.goto(-100,10)
+turtle.setheading(300)
+turtle.down()
+for i in range (5):
+    turtle.forward(50)
+    turtle.left(144)
+turtle.end_fill()
+turtle.hideturtle()
+turtle.done()

yeke/py-flag/china_flag.py

@@ -0,0 +1,105 @@
+import turtle as t, math
+
+t.colormode(255)
+rcblue=(4,0,174)
+rcred=(254,0,0)
+def ol(r):
+    na = 15 / 180 * math.pi
+    ol=2*r*math.cos(na)
+    ol=int(round(ol))
+    return ol
+def loop(r):
+    t.fd(ol(r))
+    t.right(150)
+def main0(a,b):
+    t.color(rcred)
+    t.penup()
+    t.goto(-a/2,b/2)
+    t.pendown()
+    t.begin_fill()
+    t.goto(-a/2,-b/2)
+    t.goto(a/2,-b/2)
+    t.goto(a/2,b/2)
+    t.end_fill()
+    t.penup()
+    t.goto(-a/4,b/4)
+    t.pendown()
+def main1(a1,b1):
+    t.color('gray',rcblue)
+    t.penup()
+    t.right(90)
+    t.fd(b1/2)
+    t.left(90)
+    t.pendown()
+    t.begin_fill()
+    t.fd(a1/2)
+    t.left(90)
+    t.fd(b1)
+    t.left(90)
+    t.fd(a1)
+    t.left(90)
+    t.fd(b1)
+    t.left(90)
+    t.fd(a1/2)
+    t.end_fill()
+    t.penup()
+    t.goto(-a/4,b/4)
+    t.seth(0)
+    t.pendown()
+def main2(r):
+    t.pensize = 20
+    t.color('white', 'white')
+    t.penup()
+    t.fd(r)
+    t.right(180 - 30 / 2)
+    t.pendown()
+    t.begin_fill()
+    for i in range(12):
+        loop(r)
+    t.end_fill()
+    t.penup()
+    t.goto(-a/4,b/4)
+    t.seth(0)
+    t.pendown()
+def main3(r1,r2):
+    t.color(rcblue, rcblue)  # t.color(),not t.pencolor()
+    t.begin_fill()
+    t.up()
+    t.right(90)
+    t.fd(r1)
+    t.left(90)
+    t.pd()
+    t.circle(r1)
+    t.end_fill()
+    t.penup()
+    t.goto(-a/4,b/4)
+    t.pendown()
+    t.color('white', 'white')
+    t.begin_fill()
+    t.pu()
+    t.right(90)
+    t.fd(r2)
+    t.left(90)
+    t.pd()
+    t.circle(r2)
+    t.end_fill()
+    t.penup()
+    t.goto(-a/4,b/4)
+    t.seth(0)
+    t.pendown()
+def main(a,b):
+    a1 = a / 2
+    b1 = b / 2
+    r = a1 / 4
+    r2 = a1 / 8
+    r1 = b1 * 17 / 80
+    main0(a,b)
+    main1(a1,b1)
+    main2(r)
+    main3(r1,r2)
+a=1020
+b=680
+t.setup(1100,700,100,0)
+main(a,b)
+t.hideturtle()
+t.done()

yeke/py-flag/chinamg_flag.py

@@ -0,0 +1,44 @@
+import turtle
+
+def draw_crossshaped(aTurtle, width=0, height=0, color=None):
+    aTurtle = turtle.Turtle()
+    aTurtle.hideturtle()
+    aTurtle.penup()
+    aTurtle.goto(30, 50)
+    aTurtle.begin_fill()
+    aTurtle.fillcolor(color)
+    for i in range(4):
+        aTurtle.pendown()
+        aTurtle.fd(width)
+        aTurtle.rt(90)
+        aTurtle.fd(height)
+        aTurtle.rt(90)
+        aTurtle.fd(width)
+        aTurtle.lt(90)
+    aTurtle.end_fill()
+
+def draw_RQ(times=20.0):
+    width, height = 26 * times, 26 * times
+    window = turtle.Screen()
+    aTurtle = turtle.Turtle()
+    aTurtle.hideturtle()
+    aTurtle.speed(10)
+    aTurtle.penup()
+    aTurtle.goto(-width / 2, height / 2)
+    aTurtle.pendown()
+    aTurtle.begin_fill()
+    aTurtle.fillcolor('red')
+    aTurtle.fd(width)
+    aTurtle.right(90)
+    aTurtle.fd(height)
+    aTurtle.right(90)
+    aTurtle.fd(width)
+    aTurtle.right(90)
+    aTurtle.fd(height)
+    aTurtle.right(90)
+    aTurtle.end_fill()
+    draw_crossshaped(aTurtle, width=80, height=80, color='white')
+    window.exitonclick()
+
+if __name__ == '__main__':
+    draw_RQ()