The network is blocked. The reason for the password error of the continuing education network in Shenzhen primary and secondary schools is that the network is stuck. If a network is changed, the municipal training of teachers' continuing education can be divided into two categories: public compulsory subjects and professional subjects. More than 200 courses have been offered in the training course of Shenzhen Primary and Secondary School Teachers' Continuing Education Network 1902. Shenzhen, referred to as Pengcheng for short, is a sub-provincial city, a city under separate state planning, a megacity in Guangdong Province, a China Special Economic Zone approved by the State Council, a national economic center city and an international city.