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导入跨表公式时保留值忽略错误公式？

问题：如何导入跨表公式时保留值忽略错误公式？

SpreadJS可以在加载excel的时候选择不导入公式但是这个是针对于整个excel的，如何能实现针对特定的公式不导入？

SpreadJS不支持跨表公式，但是导入的时候如果选择不导入公式，是能够取到跨表公式最终结果的。

我想在excel加载的时候，如果公式是跨表公式则直接转换为值，其他公式则正常。

在excelIo.open方法中可以获取到单元格中的公式及值，新建一个临时的Spread，fromJSON时忽略公式，在正式的表单中遍历所有单元格，匹配到用了跨表格公式的单元格，将其中的公式清空，设置值。

导入有跨表格的公式的Excel，会出现#REF的公式报错：

image

实现效果如下图所示，在Excel中设置了一些跨表格的公式，和未跨表格的公式：

image

image

导入SpreadJS 之后，可以保留普通公式，并将外部引用的公式替换为值：

image

关键代码：

excelIo.open(excelFile, function (json) {
  var workbookObj = json;
  var tempspread = new GC.Spread.Sheets.Workbook();
  tempspread.fromJSON(workbookObj, { ignoreFormula: true });
  spread.fromJSON(workbookObj);
  debugger;
  for (var i = 0; i < tempspread.getSheetCount(); i++) {
    var sheet = tempspread.getSheet(i);
    var colcount = tempspread.getSheet(i).getColumnCount();
    var rowcount = tempspread.getSheet(i).getRowCount();
    for (var j = 0; j < rowcount; j++) {
      for (vark = 0; k < colcount; k++) {
        if (spread.getSheet(i).getFormula(j, k)) {
          //正则匹配 表单中有[数字]这样格式的公式为外部引用
          if (
            spread
              .getSheet(i)
              .getFormula(j, k)
              .match(/\[\d\]/g)
          ) {
            var value = tempspread.getSheet(i).getValue(j, k);
            spread.getSheet(i).setFormula(j, k, null);
            spread.getSheet(i).setValue(j, k, value);
          }
        }
      }
    }
  }
});


具体Demo可以参考这个链接。