python 获取list中元素的索引

# 获取list中指定元素的索引
a = [2,4,3,5,6,8]
c = []
for i in a:
    c.append(a.index(i))
print(c)

运行结果为:

 获取指定元素的下标

a = [2,4,3,5,6,8]
print(a.index(3))

运行结果为: