auto save

1.py

+# def a(x,y,z):
+#     print(x,y,z)
+# a(2,3,4)#位置实参
+# a(x=3,y=4,z=5)#关键字实参
+# a(4,y=5,z=6)
+# a(4,5,z=6)
+# a(x=4,5,z=6)
+# a(x=4,y=5,6)
+# def a(y,x=1):
+#     print(x,y)
+# a(3,2)
+
+# my=lambda a,b=3: a*b
+# print(my(4,3))
+
+# def c(a,b):
+#     return a*b
+# print(c(2,3))
+
+# def  a():
+#     print(1)
+# a()
+
+
+# def demo(n):
+#     return n*2
+# print(demo(demo(demo(1))))
+# x=1
+# def demo():
+#     global x
+#     x=2
+#     print(x)
+# demo()
+# print(x)
+# def f(s):
+#     t=0
+#     max=0
+#     for i in s:
+#         if i>='0' and i<='9':
+#             t+=1        
+#         else:
+#             if t>max:
+#                 max=t       
+#             t=0
+#     print(max)
+# list='2134abc47895cd6d'
+# f(list)
+
+
+# def a(n):
+#     if n==1:
+#         return 1
+#     s=a(n-1)+n
+#     return s
+# print(a(100))
+
+
+# a=[1,2,31,2,1]
+# b=[]
+# for i in a:
+#    b.insert(-1,i)
+# print(b)
+    
+a=[i for i in range(10)]
+print(a)
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2.py

+# def a(a,b,c):
+#     print('123'+str(a)+str(b)+str(c))
+# a(3,2,1)#位置实参
+# a(a=4,b=3,c=2)#关键字实参
+# a(4,b=4,c=4)
+# a(5,5,c=5)
+#形参实参
+
+# def a(x,y=2):
+#     print(x,y)
+# a(1,7)
+#速度 利用率 可读性 复杂度
+# bbb=lambda a,b=2:a*b
+
+# def a(a,b):
+#     print(a*b)
+# a(2,2)
+
+# def demo(n):
+#     return n*2
+# print(demo(demo(demo(1))))
+
+# a='123'
+# def f():
+#     global a 
+#     a='12'
+#     print(a)
+# print(a)
+# f()
+
+
+# global nonlocal
+# count=12
+# def add():
+#     count=1
+#     def fun():
+#         nonlocal count
+        
+#         print(count)
+#         count+=2
+#     return fun
+# a=add()  
+# a()
+# a()
+
+
+def f1():
+    x=5
+    y=6
+    print(x+y)
+def f2():
+    y=1
+    print(x+y)
+f1()
+f2()
+# def a(n):
+#     if n==1:
+#         return 1
+#     else:
+#         return a(n-1)+n
+# print(a(1000))
+
+
+ans=0
+def fu(a,b,x=1):
+    if b==1:
+        return 6
+    global ans
+    ans+=fu(a-x,b-1,2)
+    return ans
+print(fu(5,74,3))
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3.py

+# #如何将字符串倒叙输出
+# a=input("请输入长度小于80的一个字符串")#用input函数获取一个字符串
+# #字符串转化列表，列表转化为字符串
+# list=[] #建立一个空的列表，
+# for i in a:#循环遍历字符串a
+#     list.insert(0,i) #将a中的每个小字符添加到列表的第一个位置，返回一个倒叙的列表
+# newa=''.join(list)#用join函数将列表抓换为字符串
+# print(newa)#打印出新的字符串
+
+# #2，
+# a=input("请输入长度小于80的一个字符串")
+# newa='' #创建一个空的字符串                        
+# for i in a:#循环遍历a
+#     newa=i+newa
+# print(newa)
+
+# a=['beijing','shanghai','huzhou','acc']
+# f=open("city.csv",'a')
+# f.write(','.join(a))
+# f.close()
+
+# a=[
+#     ['张三','98','123','124'],
+#     ['李四','98','123','124'],
+#     ['王五','98','123','124']
+# ]
+# f=open('cj.csv','w')
+# for i in a:
+#     f.write(",".join(i)+'\n')
+# f.close()
+# f=open('cj.csv','r')
+# c=[]
+# for i in f:
+#     c.append(i.strip("\n").split(','))
+# f.close()
+# print(c)
+
+# with open('123.csv','w',newline='') as f:
+#     a=csv.writer(f)
+#     a.writerow(['color','red'])
+
+# try:
+#     a=int("输入一个整数")
+#     b=int("输入一个整数")
+#     m=a/b
+#     print('商是：',m)
+# except ValueError:
+#     print("输入的不是数字")
+# except ZeroDivisionError:
+#     print('除数为0')
+# except:
+#     print('其他错位')
+# finally:
+#     print('程序结束')
+
+# a=[1,3,2,5,8,7,6,0]
+# for i in range(len(a)-1):
+#     for j in range(len(a)-1):
+#         if a[j]>a[j+1]:
+#             a[j],a[j+1]=a[j+1],a[j]
+#     print(a)
+
+A = [64,25,0,22,1] 
+for i in range(len(A)):  #循环的次数
+    min_idx = i #自定义最小的是哪个数据的索引
+    for j in range(i+1,len(A)): #让其跟后面的数据进行比较
+        if A[min_idx] > A[j]: #如果最小的数不是min_idx,就改成j。
+            min_idx = j             
+    A[i], A[min_idx] = A[min_idx], A[i]
+    print(A)
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4.py

+# # print(bin(1238))
+# # print(eval('9.9'))
+# # a=[4,1,34,2,412,41,24]
+# # for i,j in enumerate(a):
+# #     print(i,j)
+
+# all() 全是真就是真，否则假 all([]) all(())
+# any()  全是假就是假，否则真 any([]) any(())
+
+# a.split("")
+# b=''.join(a)
+
+# try 尝试执行这个代码
+#     except 
+# else:
+# finally
+
+
+# a=[23,235,1,5,4,23,5,1,0]
+# for i in range(len(a)):
+#     for j in range(len(a)-1-i):
+#         if a[j]>a[j+1]:
+#             a[j],a[j+1]=a[j+1],a[j]
+#     print(a)
+# print(hex(100))
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cj.csv

+,98,123,124
+,98,123,124
+,98,123,124

my_csv.py

-import csv
+int('5')
+str(5)
+print(5)
+a=input("你是谁")
+b=1
+import turtle
+forward(100)
+pen.hideturtle()
+turtle.done()
+penup()
+pendown()
+pen.color('red')
+pen.fillcolor('red')
+pen.begin_fill()
+pen.end_fill()
+pen.shape('turtle')
+pen.circle(50)
+pen.dot(100)
+bgcolor("yellow")
+clear()
 
 
-data = [["姓名", "语文", "数学", "英语"],
-        ["小贝", 98, 99, 92],
-        ["聪聪", 95, 91, 95]]
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