cppint报错"virtual" is redundant since function is already declared as "override"

In the provided document, the setup binding property `nowFirst` is indeed declared more than once, which can cause issues in the Vue application. Here are the specific instances where it is declared: 1. **Initial Declaration:** ```javascript const state = reactive({ nowFirst: 'projectCode', // other properties... }); ``` 2. **Redundant Declaration:** ```javascript const departChange = (val) => { if (val == 2) { nowFirst.value = 'orgCode_dictText'; // other logic... } else { nowFirst.value = 'projectCode'; // other logic... } columnsKey.value += 1; }; ``` ### Solution To resolve this issue, you should ensure that `nowFirst` is only declared once in the `state` object. The `departChange` function can then modify the `nowFirst` property as needed without redeclaring it. Here is the corrected version of the relevant parts of the code: 1. **State Initialization:** ```javascript const state = reactive({ nowFirst: 'projectCode', columnsKey: 0, projectNameList: [], projectName_Code: '', projectBudgetMarginWarning: 0, expandedRowKeys: [], workorderProjectList: [], description: '营业报表管理页面', fastTime: ['本月', '上月', '近半年'], noCreate: true, hasUpdateTime: true, configOrderSubTypeList: [], configOrderSubTypeTemp: undefined, allDepartList: [], hallCodeDataList: [], spinning: false, checkFlag: true, updateTime: '', url: { list: "/web/materialVoucherDetails/getProjectMaterialStatistic", exportXlsxUrl: "/web/materialVoucherDetails/exportProjectMaterialStatisticExcel", exportPdfUrl: "/web/bizBusinessRecord/exportpdf", exportDetailUrl: "/web/bizBusinessRecord/exportDetailExcel" }, keyList: ['saleNum', 'saleName', 'terminalTypeName', 'userTypeName', 'configOrderMainTypeName', 'configOrderSubTypeName'], ipagination: { current: 1, pageSize: 20, pageSizeOptions: ['20', '50', '80'], showTotal: (total, range) => `${range[0]}-${range[1]} 共 ${total} 条`, showQuickJumper: true, showSizeChanger: true, total: 0 }, originColums: [], columns: [ // column definitions... ], queryParam: { type: '', projectCode: '', projectName: '', projectName_Code: "", subProjectName: '', departId: '', material: '', producerId: '', specification: '', materialInventoryResult: '', projectDateBegin: '', projectDateEnd: '' }, dataSource: [], loading: false, toggleSearchStatus: false }); ``` 2. **Function to Change `nowFirst`:** ```javascript const departChange = (val) => { if (val == 2) { state.nowFirst = 'orgCode_dictText'; let objectArray = deepClone(state.originColums); let movedElement = objectArray.splice(3, 1)[0]; objectArray.unshift(movedElement); state.columns = objectArray; } else { state.nowFirst = 'projectCode'; state.columns = deepClone(state.originColums); } state.columnsKey += 1; }; ``` By making these changes, you ensure that `nowFirst` is only declared once and can be modified as needed within the `departChange` function. This will prevent any potential conflicts or errors in your Vue application.

Thank you for your question! The warning "Call to 'toString()' is redundant" typically occurs when there is a redundant call to the `toString()` method. In many programming languages, objects have a `toString()` method that converts the object to a string representation. However, when you concatenate or use an object directly in a string context, the `toString()` method is automatically called, so explicitly calling `toString()` is unnecessary. Here's an example to illustrate this: ```java String name = "John"; String message = "Hello, " + name.toString() + "!"; // Redundant call System.out.println(message); ``` In the above code, the call to `toString()` on the `name` object is redundant because the concatenation operator (`+`) automatically calls `toString()` internally. The code can be simplified as follows: ```java String name = "John"; String message = "Hello, " + name + "!"; // No need for toString() System.out.println(message); ``` By removing the redundant call, the code becomes cleaner and easier to read.