python从入门到放弃-day05-list(列表的增删改查)

#   作者 : liuxing
#   日期 : 2017-12-25
#   list用法 增删改查

names=["liuxing","wangnian","sunkang","xiaohang","zhujian","xuxian"]
#----------- 查-------------
print("names->",names)
print("names[1]->",names[1])
print("names[1:]->",names[1:])
print("names[:-1]->",names[:-1])
print("names[1:-1]->",names[1:-1])
print("names[1:-1:2]->",names[1:-1:2])
print("names[1::2]->",names[1::2])
print("names[::2]->",names[::2])
print("names[1::-1]->",names[1::-1])

#------------增---------------
names.append("ligang")   #添加到列表尾部
print("append->",names)

names.insert(1,"wangqiang") #添加到任意位置
print("insert->",names)

#------------改---------------
names[0]="xiongda"
names[1:3]=["baoqiang","jiangwen"]

#------------删---------------
names.remove("sunkang")
print("remove->",names)

name=names.pop(1)  #pop可以有返回值
print("pop->",names)

del names[2]
print("del->",names)

结果:
names-> ['liuxing', 'wangnian', 'sunkang', 'xiaohang', 'zhujian', 'xuxian']
names[1]-> wangnian
names[1:]-> ['wangnian', 'sunkang', 'xiaohang', 'zhujian', 'xuxian']
names[:-1]-> ['liuxing', 'wangnian', 'sunkang', 'xiaohang', 'zhujian']
names[1:-1]-> ['wangnian', 'sunkang', 'xiaohang', 'zhujian']
names[1:-1:2]-> ['wangnian', 'xiaohang']
names[1::2]-> ['wangnian', 'xiaohang', 'xuxian']
names[::2]-> ['liuxing', 'sunkang', 'zhujian']
names[1::-1]-> ['wangnian', 'liuxing']
append-> ['liuxing', 'wangnian', 'sunkang', 'xiaohang', 'zhujian', 'xuxian', 'ligang']
insert-> ['liuxing', 'wangqiang', 'wangnian', 'sunkang', 'xiaohang', 'zhujian', 'xuxian', 'ligang']
remove-> ['xiongda', 'baoqiang', 'jiangwen', 'xiaohang', 'zhujian', 'xuxian', 'ligang']
pop-> ['xiongda', 'jiangwen', 'xiaohang', 'zhujian', 'xuxian', 'ligang']
del-> ['xiongda', 'jiangwen', 'zhujian', 'xuxian', 'ligang']

 

转载于:https://www.cnblogs.com/xzcdcln/p/8109792.html