1. 给定列表L，如[2,5,3,8,10,1]，对其进行升序排序并输出。
代码：
list = [2,5,8,10,1]
print(str[::-1])
dict = {"a":"1","b":"2","c":"3"}
print(dict.keys())
print(dict.values())
dict.setdefault("d")
dict["d"] = "4"
print(dict)
print(list)
list.sort()
print(list)
2.给定字符串s,如‘123456’,将其逆序输出，使用切片
代码： str = '123456'print(str[::-1])
3.给定字典dict,如{‘a’:1,'b':'2','c':'3'}，分别输出它的key与value。向其中插入字典{'d':4},并输出新的zid
代码：dict = {"a":"1","b":"2","c":"3"}
print(dict.keys())
print(dict.values())
dict.setdefault("d")
dict["d"] = "4"
print(dict)
4.求出100以内的所有素数
for i in range(2,101): fg = 0 for t in range(2,(i-1)): if(i % t == 0): fg = 1 if(fg == 0): print(i)