Python在List开头添加元素
方法1
a = [1,2,3]
a = [0] + a
print(a)
[0, 1, 2, 3]
方法2
a = [1,2,3]
a.insert(0,0)
print(a)
[0, 1, 2, 3]
学学笔记 - 官方 Qiter | 学习笔记
a = [1,2,3]
a = [0] + a
print(a)
[0, 1, 2, 3]
a = [1,2,3]
a.insert(0,0)
print(a)
[0, 1, 2, 3]
Python在List开头添加元素