for

# 循环读取一个范围里面的数据

for iin range(10):

print(i)

for iin range(1,10):

print(i)

for iin range(1,10,2):

print(i)

# 循环读取字符串，tuple,list,set

list1 = [1,2,3]

tuple1 = (1,2,3)

string1 ='123'

set1 = {1,2,3}

for iin string1:

print(i)

dict1 = {'id':1,'name':'zhangsan','age':11}

# 读出所有的键值对

for k,vin dict1.items():

print(k,v)