Angular 导出CSV表

emmmmmmmmmmmmmmm 代码如下 简单的CSV能直接拿来用

import {Injectable} from '@angular/core';@Injectable()export class ExportService {  csvSeparator = ',';  constructor() {  }  /**   * @param value //[{'姓名':'小明','成绩','100'}]   * @param columns //['姓名','成绩']   * @param exportFilename // '成绩统计表'   */  exportCSV(value, columns, exportFilename) {    const data = value;    let csv = '\ufeff';    // headers    for (let i = 0; i < columns.length; i++) {      const column = columns[i];      csv += '"' + (column.header || column) + '"';      if (i < (columns.length - 1)) {        csv += this.csvSeparator;      }    }    // body    data.forEach((record) => {      csv += '\n';      for (let i_1 = 0; i_1 < columns.length; i_1++) {        const column = columns[i_1];        csv += '"' + this.resolveFieldData(record, column) + '"';        if (i_1 < (columns.length - 1)) {          csv += this.csvSeparator;        }      }    });    const blob = new Blob([csv], {      type: 'text/csv;charset=utf-8;'    });    if (window.navigator.msSaveOrOpenBlob) {      navigator.msSaveOrOpenBlob(blob, exportFilename + '.csv');    } else {      const link = document.createElement('a');      link.style.display = 'none';      document.body.appendChild(link);      if (link.download !== undefined) {        link.setAttribute('href', URL.createObjectURL(blob));        link.setAttribute('download', exportFilename + '.csv');        link.click();      } else {        csv = 'data:text/csv;charset=utf-8,' + csv;        window.open(encodeURI(csv));      }      document.body.removeChild(link);    }  }  resolveFieldData(data, field) {    if (data && field) {      if (field.indexOf('.') === -1) {        return data[field];      } else {        const fields = field.split('.');        let value = data;        for (let i = 0, len = fields.length; i < len; ++i) {          if (value === null) {            return null;          }          value = value[fields[i]];        }        return value;      }    } else {      return null;    }  }}