fix: 功能优化完善，分期待还相关。

src/views/invest/onlineLendHistory/index.vue

@@ -227,6 +227,9 @@
                       </el-tooltip>
                     </template>
                     <template v-else>
+                      <el-tooltip class="item" effect="dark" content="还款" placement="top">
+                        <el-button icon="Coin" v-hasPermi="['invest:installmentHistory:edit']" circle @click="handleRepayment(scope.row)"></el-button>
+                      </el-tooltip>
                       <el-tooltip v-for="item in operateDetailList" :key="item.id" class="item" effect="dark" :content="item.title" placement="top">
                         <el-button :icon="item.icon" v-hasPermi="item.hasPermi" circle @click="handleDetailOperate(item.id, scope.row)"></el-button>
                       </el-tooltip>
@@ -594,6 +597,22 @@ function handleUpdateDetail(row) {
   })
 }
 
+/** 还款按钮操作 */
+function handleRepayment(row) {
+  resetDetail()
+  getInstallmentDetail(row.id).then((response) => {
+    formDetail.value = response.data
+    // 默认设置还款状态为已还款
+    formDetail.value.postingState = '1'
+    // 设置还款日期为当前日期
+    if (!formDetail.value.repaymentDate) {
+      formDetail.value.repaymentDate = dayjs(new Date().getTime()).format('YYYY-MM-DD')
+    }
+    openDetail.value = true
+    titleDetail.value = '贷款还款'
+  })
+}
+
 /** 提交按钮 */
 function submitForm() {
   proxy.$refs.installmentHistoryRef.validate((valid) => {