作者：陈果         更新时间：2025-12-07 11:18          浏览：19次         点赞：1次          热度：34

d3={1:11,2:22,3:33,4:44} d3.update({1:55}) print(d3) d2={1:11,2:22,3:33,4:44} d2.update({5:55}) print(d2) d2.update(key='6',value=66) print(d2) d2[7]="555" print(d2) d3={1:11,2:22,3:33,4:44} a=d3.pop(4) print(d3) print(a) del d3[1] print(d3) b=d3.popitem() print(d3) print(b) s={} print(s,type(s)) s1=set() print(s1,type(s1)) a={1,2,3,5} print(a,type(a)) b=[1,2,1,3,4] c=set(b) print(c,type(c)) A={1,2,3,4,5} B={5,6,7,8,9} A&B A|B A-B d={1,2,3,4,5} 1 in d '1' in d d={1,2,3,4,5} for i in d: print(i)