import io, sys, os
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')

root = r'E:\code\crm-api-docs'
for d in sorted(os.listdir(root)):
    p = os.path.join(root, d)
    tag = 'D' if os.path.isdir(p) else 'F'
    print(tag, d)

print('--- A4 ---')
a4 = os.path.join(root, 'A4 客户管理')
for dirpath, dirs, files in os.walk(a4):
    rel = os.path.relpath(dirpath, a4)
    print('DIR', rel, '| files:', files)

print('--- A3 subdirs ---')
a3 = os.path.join(root, 'A3 商机管理')
for d in sorted(os.listdir(a3)):
    p = os.path.join(a3, d)
    if os.path.isdir(p):
        print('==', d, '==', len(os.listdir(p)), 'entries')