https://blog.****.net/xiangchengguan/article/details/78987041
arr = ['','','','']
arr = list(map(int,arr))
print(arr) #[22, 44, 66, 88]
https://blog.****.net/xiangchengguan/article/details/78987041
arr = ['','','','']
arr = list(map(int,arr))
print(arr) #[22, 44, 66, 88]