ts 如何继承父类并修改属性?-灵析社区
Ufoooo4U### ts 如何继承父类并修改属性?   ### 相关代码 export interface ITableData { flag: 0 | 1 measure_name: string measure_value: number result_desc: string standard_deviation: number standard_value: number name: string } interface IMeasureData extends ITableData { measure_value: number | string } const measureList: IMeasureData[] = [{ measure_value: "2" }]
代码大师可以使用工具类型 "Omit" 将需要修改的属性 "measure_value"
剔除掉，然后继承剔除后的接口，并对该属性进行重新声名。（PS：如下代码中，我将原接口的属性改成可选属性，以避免赋值时的报错。）
export interface ITableData {
flag?: 0 | 1;
measure_name?: string;
measure_value?: number;
result_desc?: string;
standard_deviation?: number;
standard_value?: number;
name?: string;
}
interface IMeasureData extends Omit {
measure_value: number | string;
}
const measureList: IMeasureData[] = [{ measure_value: "2" }];
希望对题主有所帮助！