Python随心记--练习

l1 = [11,22,33]
l2 = [22,33,44]
for item in l1:
    if item not in l2:
        print(item)

#统计123455678组合两位数且不能重复
num=0;
for item in range(1,9):
    for vtem in range(1,9):
        if item != vtem:
            num +=1
print(num)

#九九乘法表
for i in range(1,10):
    string = ''
    for v in range(1,i+1):
        string += str(v) + '*' + str(i) + '=' + str(i*v) + '\t'
print(string)

#100//5表示取整，目的是减少程序的运行次数
for i in range(1,100//5):
    for v in range(1,100//3):
        for x in range(1,100):
            #思路
            #三种鸡的数量加起来为100 总价格为100
            if i+v+x == 100 and 5*i + 3*v + x/3 == 100:
                print(i,v,x)
                
nums = [2,7,11,15,1,5,8,7]
a=[];
for i in nums:
    for v in nums:
       if i + v == 9:
           a.append((1,v))
print(a)

for i in range(1,10):
    print(i)
    
#分页
user_list = []
for i in range(1,301):
    temp = {'name':'alex'+ str(i),'email':'laruencess@outlook.com'}
    user_list.append(temp)
while True:
    page = input('>>>：')
    page = int(page)
    start = (page - 1) * 10
    end = page * 10
    result = user_list[start:end]
    for item in result:
        print(item,type(item))

#循环键
li = [11,22,33,44,55,66,77,88,99]
for i in range(0,len(li)):
    print(i)
#循环值
for i in li:
    print(i)