函数

Author: corn12138

Diff for: __pycache__/mypr09.cpython-313.pyc

@@ -76,22 +76,284 @@
 #     grade = '优秀'
 # print("分数是{0},等级是{1}".format(score,grade))
 
-x = int(input('输入x轴坐标：'))
-y = int(input('输入y轴坐标：'))
-
-if(x==0 and y==0):
-    print("坐标在原点")
-elif(x==0):
-    print("坐标在y轴上")
-elif(y==0):
-    print("坐标在x轴上")
-elif(x>0 and y>0):
-    print('坐标在第一象限')
-elif(x<0 and y>0):
-    print('坐标在第二象限')
-elif(x<0 and y<0):
-    print('坐标在第三象限')
-else:
-    print('坐标在第四象限')
+# x = int(input('输入x轴坐标：'))
+# y = int(input('输入y轴坐标：'))
+#
+# if(x==0 and y==0):
+#     print("坐标在原点")
+# elif(x==0):
+#     print("坐标在y轴上")
+# elif(y==0):
+#     print("坐标在x轴上")
+# elif(x>0 and y>0):
+#     print('坐标在第一象限')
+# elif(x<0 and y>0):
+#     print('坐标在第二象限')
+# elif(x<0 and y<0):
+#     print('坐标在第三象限')
+# else:
+#     print('坐标在第四象限')
+
+
+#选择结构的嵌套
+# score = int(input('输入一个在0-100之间的数字：'))
+# grade = ""
+# if score>100 or score<0:
+#     score = int(input('输入错误！重新输入一个在0-100之间的数字：'))
+# else:
+#     if score>=90:
+#         grade = '优秀'
+#     elif score>=80:
+#         grade = '良好'
+#     elif score>=70:
+#         grade = '中等'
+#     elif score>=60:
+#         grade = '及格'
+#     else:
+#         grade = '不及格'
+#
+# print("分数是{0},等级是{1}".format(score,grade))
+
+# score = int(input('输入一个在0-100之间的数字：'))
+# grade = "ABCDE"
+# if score>100 or score<0:
+#     score = int(input('输入错误！重新输入一个在0-100之间的数字：'))
+# else:
+#     asz = score//10 #
+#     if asz<6:asz = 5
+#     grade = grade[9-asz]
+#     print("分数是{0},等级是{1}".format(score,grade))
+
+
+#while循环结构_死循环处理
+# num=0
+# while num<=10:
+#     print(num,' while循环')
+#     num+=1
+# print(num,' while循环结束')
+
+num=1
+sum=0
+while 0<=num<=100:
+    sum+=num
+    num+=1
+
+print(sum,' while循环结束')
+
+#for循环结构_遍历各种可迭代对象_range对象
+# for x in (20,30,40):
+#     print(x*10,end=' ')
+#
+# for y in 'hello':
+#     print(y,end=' ')
+# d = {'name':'张','age':20,'address':'北京'}
+# for k in d:
+#     print(k,d[k]) #遍历字典的键值对
+#
+# for k in d.keys(): #遍历字典的键
+#     print(k)
+#
+# for k in d.values(): #遍历字典的值
+#     print(k)
+#
+# for k in d.items(): #遍历字典的键值对
+#     print(k)
+
+# for x in range(10):
+#     print(x,end=' ')
+#
+# for x in range(3,11):
+#     print(" ",x)
+#
+# for x in range(3,11,3):
+#     print(" ",x)
+
+
+# sum_nums = 0
+# a_sums = 0
+# b_sums = 0
+#
+# for nums in range(101):
+#     sum_nums+=nums
+# print(sum_nums)
+#
+# for nums in range(101):
+#     if nums%2==0:
+#         a_sums+=nums
+#     else:
+#         b_sums+=nums
+# print(a_sums,b_sums)
+
+#嵌套循环
+for x in range(5):
+    for y in range(5):
+        print(x,end='\t')
+    print() #换行
+
+#嵌套循环练习_九九乘法表_打印表格数据
+
+#先打印一行的 乘法表
+# for n in (1,6):
+#     print("{0}*{1}".format(5,n),end='\t')
+# print()
+
+#然后 再外层套大循环
+# for m in range(1,10):
+#     for n in range(1,m+1):
+#         print("{0}*{1}".format(m,n),end='\t')
+#     print()
+
+#
+# r1 = dict(name='高小一',age=18,salary=30000,city='北京')
+# r2 = dict(name='高小二',age=19,salary=20000,city='上海')
+# r3 = dict(name='高小三',age=20,salary=10000,city='深圳')
+# tb = [r1,r2,r3]
+# for i in tb:
+#     if i.get('salary')>15000:
+#         print(i)
+#     print()
+
+#break 语句 ---退出循环
+# while True:
+#     x = input('输入一个字符（exit 表示结束）：')
+#     if x=='exit':
+#         break
+#         print(x)
+#     else:
+#         print(x)
+
+
+#continue 语句 ---跳过当前循环,继续下一次循环
+# empNum = 0
+# salarys = []
+# salarySum = 0
+# while True:
+#     s = input('请输入员工的薪资（按Q或q结束）:')
+#     if s.upper()=='Q':
+#         print('录入完成，退出！')
+#         break
+#     if float(s)<0:
+#         print('录入错误，薪资不能为负数！请重新录入')
+#         continue
+#     print('录入成功！')
+#     empNum+=1
+#     salarys.append(float(s))
+#     salarySum+=float(s)
+# print('员工人数为：{0}，薪资总和为：{1}，平均薪资为：{2}'.format(empNum,salarySum,salarySum/empNum))
+
+
+#循环中的else语句(while,for)
+# salarySum = 0
+# salarys = []
+# for i in range(4):
+#     s = input('请输入4名员工的薪资（按Q或q结束）:')
+#     if s.upper()=='Q':
+#         print('录入完成，退出！')
+#         break
+#     if float(s)<0:
+#         print('录入错误，薪资不能为负数！请重新录入')
+#         continue
+#     print('录入成功！')
+#     salarySum+=float(s)
+#     salarys.append(float(s))
+# else:
+#     print('所有员工的薪资录入成功！')
+#
+# print('录入的薪资为：',salarys)
+# print('录入的薪资总和为：',salarySum)
+# print('录入的薪资平均值为：',salarySum/4)
+
+#循环代码优化技巧
+import time
+start = time.time()
+for i in range(1000):
+    result = []
+    for m in range(10000):
+      c = i*1000
+      # result = result + [m*100] #不要使用+号，会生成新的列表对象
+      result.append(c+m*100) #使用append方法，只是在原列表对象上添加元素
+end = time.time()
+print('耗时：',end-start)
+
+print('优化后的')
+
+start = time.time()
+for i in range(1000):
+    result = []
+    c = i * 1000
+    for m in range(10000):
+      # result = result + [m*100] #不要使用+号，会生成新的列表对象
+      result.append(c+m*100) #使用append方法，只是在原列表对象上添加元素
+end = time.time()
+print('耗时：',end-start)
+
+#zip()并行迭代多个序列
+# names = ['张三','李四','王五','赵六']
+# ages = [20,30,40,50]
+# jobs = ['工程师','医生','律师']
+#
+# for name,age,job in zip(names,ages,jobs):
+#     print('{0}--{1}--{2}'.format(name,age,job))
+
+#非zip实现方式
+names = ('张三','李四','王五','赵六')
+ages = (20,30,40,50)
+jobs = ('工程师','医生','律师')
+
+for i in range(min(len(ages),len(ages),len(jobs))):
+    print('{0}--{1}--{2}'.format(names[i],ages[i],jobs[i]))
+
+#推导式创建序列_列表推导式_字典推导式_集合推导式_生成器推导式
+   #列表推导式
+ls = [x*6 for x in range(10) if x%2==0]
+print(ls,'推导式')
+
+lsb = []
+for x in range(1,10):
+    if x%2==0:
+        lsb.append(x*6)
+print(lsb,'非推导式')
+
+#字典推导式
+values = ['北京','上海','深圳','广州']
+cities = {id:city for id,city in zip(range(1,5),values)}
+print(cities,'字典推导式')
+
+my_text = 'I love python programming I love javascript programming I love java programming'
+char_count = {s:my_text.count(s) for s in my_text}
+print(char_count,'字典推导式')
+
+#集合推导式
+os_a = {x for x in range(10) if x%2!=0}
+print(os_a,'集合推导式')
+
+#生成器推导式
+g = (x for x in range(1,100) if x%9==0) #生成器对象
+print(g,'生成器推导式')
+
+for x in g:
+    print(x,end=' ')
+
+for x in g:
+    print(x,end=' ')   #生成器对象只能迭代一次
 
+# 综合练习_绘制不同颜色的同心圆_绘制棋盘
+import turtle
+p = turtle.Pen() #创建画笔对象
+# p.circle(10) #绘制半径为100的圆
+# p.penup() #抬起画笔
+# p.goto(0,-10) #移动到坐标(0,-10)    #绘制同心圆
+# p.pendown() #放下画笔
+# p.circle(20)
+radius = [x*10 for x in range(1,11)]
+colors = ['red','green','yellow','black']
+p.width(4) #设置画笔宽度
+for i,color_j in zip(radius,range(len(radius))):
+    p.penup() #抬起画笔
+    p.goto(0,-i) #移动到坐标(0,-i)
+    p.pendown() #放下画笔
+    # p.pencolor(colors.pop()) #设置画笔颜色
+    p.color(colors[color_j%len(colors)]) #设置画笔颜色
+    p.circle(i) #绘制圆
 
+turtle.done()