do such a component
after the user selects the role, the selected user is used as the query condition to bring out the drop-down value of the technical title.
my approach is to request the interface to get the data from the second drop-down box in the @ change event that selects the role, and then I want to "bind this drop-down data to the current row as an attribute," because clicking the green plus will bring up a new line.
but "bind this drop-down data to the current row as an attribute" I use
this.$refs.operationTable.data[scope.$index].costTypeSelectData = resArry;
this.$refs I found that I can"t drive the template layer, although the current line does have this attribute. The
phenomenon is that there is still no drop-down data for the second technical title after the role has been selected.