In the 5G era with the revolutionary improvement of network speed, digital medical care has brought great convenience to health services. There is a lack of mobile medical data on cancer care worldwide. We designed an applet based on mobile intelligent electronic devices with a doctor-patient dual interface for the perioperative management of cancer patients and verified its applicability in the general population. This study aims to specifically improve the applet according to the characteristics of cancer patients, use it to accurately manage and intervene cancer patients, and establish a rapid doctor-patient communication platform, hoping to improve prognosis.

Inclusion Criteria:

• Sign and date informed consent;
• Commit to abide by the research procedures and cooperate with the implementation of the whole research process ;
• Can adhere to and cooperate with research intervention;
• Tumor patients;
• Patients/family members can use smart phones to access the Internet;
• Patients/family members have sufficient cognitive and reading ability;
• No mental illness;
• No serious visual impairment

Exclusion Criteria:

• Equipped with specific devices (such as cardiac pacemaker);
• Those who do not meet the conditions listed in the inclusion criteria.