Python 列表魔法三

v = "alex"
v = v.replace("l","el")
print(v)

 

 

 

li = [11,22,33,44,55]
li[0] = 00
print(li)

 

 

 

#补充:错误,字符串创建后不可更改
li ="alex"
li[0]
li[0] = "E"