Effect of exercise intervention on elderly people with mild cognitive impairment in the community

INTERVENTION: Multi‐component exercise intervention group:Implement multi‐component exercise community group intervention;Traditional aerobic exercise group:Implement aerobic exercise such as brisk walking, jogging, Tai Chi, etc.; CONDITION: mild cognitive impairment PRIMARY OUTCOME: Cognitive function; SECONDARY OUTCOME: Satisfaction;Ability to perform daily activities;quality of life;Psychiatric and behavioral symptoms;Psychiatric and behavioral symptoms;Compliance; INCLUSION CRITERIA: 1.Aged 60 and above; 2.Diagnosed with MCI according to Petersen criteria; 3.Ability to walk independently for more than 5 minutes; 4.Sedentary lifestyle in daily life; 5.Have a family caregiver; 6.Self‐reported hearing and visual abilities; 7.Obtain informed consent from patients and family members;