python_indexing mechanism to access the elements of arrays

Python has provided a flexible indexing mechanism to access the elements of an array
1. 利用索引
python_indexing mechanism to access the elements of arrays
python_indexing mechanism to access the elements of arrays

python_indexing mechanism to access the elements of arrays
python_indexing mechanism to access the elements of arrays
python_indexing mechanism to access the elements of arrays

python_indexing mechanism to access the elements of arrays
python_indexing mechanism to access the elements of arrays

2. 利用布尔数组
python_indexing mechanism to access the elements of arrays
python_indexing mechanism to access the elements of arrays