Have a general mechanism for dot-notation accessible associated types
the tasks that ERMA was taking over. Since the 1930s, IBM had produced a line of
，这一点在WPS官方版本下载中也有详细论述
���f�B�A�ꗗ | ����SNS | �L���ē� | ���₢���킹 | �v���C�o�V�[�|���V�[ | RSS | �^�c���� | �̗p���� | ������
// 易错点3：未初始化默认值，可能导致res[i]为undefined