修改

src/utils/mixin.js

@@ -250,4 +250,57 @@ export let categoryName = {
 
         }
     },
+}
+
+export function mergeSpan(params) {
+    return {
+        methods: {
+            reduceData(data) {
+                let arr = data;
+                let prev = new Array(params.length).fill(undefined);
+                try {
+                    return arr.map((item, index) => {
+                        params.forEach((param, ind) => {
+                            if (item[param.name].trim() != prev[ind]) {
+                                let num = ind;
+                                while (num--) {
+                                    if (prev[num] !== undefined && item[params[num].name].trim() !== prev[num]) {
+                                        break;
+                                    }
+                                }
+                                if (num < 0) {
+                                    prev[ind] = item[param.name]
+                                    let spans = [];
+                                    for (let i = 0; i <= ind; i++) {
+                                        spans.push(params[i].name)
+                                    }
+                                    item[param.name + 'Row'] = getNumber(item, index, arr, spans)
+                                }
+                            }
+                        })
+                        return item;
+                    })
+                } catch (e) {
+                    console.log(e)
+                }
+            },
+            arraySpanMethod({ row, column, rowIndex, columnIndex }) {
+                for (let param of params) {
+                    if (param.col.includes(columnIndex)) {
+                        if (row[param.name + 'Row']) {
+                            return {
+                                rowspan: row[param.name + "Row"],
+                                colspan: 1
+                            }
+                        } else {
+                            return {
+                                rowspan: 0,
+                                colspan: 1
+                            }
+                        }
+                    }
+                }
+            },
+        }
+    }
 }