优化代码 for (let item of that.parentTemplate) { if (item.key == 'existContract') { if (!item.disabled || !Array.isArray(item.disabled)) { item.disabled = []; } if (e === 1) { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } else if (e === 2 || e == undefined || e === '') { that.changeForm({ ['existContract' + more]: '', }); item.disabled.push(index); } else { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } } if (item.key == 'contractCode') { if (!item.disabled || !Array.isArray(item.disabled)) { item.disabled = []; } if (e === 1) { } else if (e === 2 || e == undefined || e === '') { that.changeForm({ ['contractCode' + more]: '', }); item.disabled.push(index); } else { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } } if (item.key == 'isProjectCost') { if (!item.disabled || !Array.isArray(item.disabled)) { item.disabled = []; } if (e === 1) { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } else if (e === 2 || e == undefined || e === '') { that.changeForm({ ['isProjectCost' + more]: '', }); item.disabled.push(index); } else { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } } }

你可以尝试优化这段代码，减少重复的代码块。你可以使用一个数组来存储需要处理的字段名，然后使用循环来处理每个字段。

const fields = ['existContract', 'contractCode', 'isProjectCost'];

for (let item of that.parentTemplate) {
  for (let field of fields) {
    if (item.key === field) {
      if (!item.disabled || !Array.isArray(item.disabled)) {
        item.disabled = [];
      }
      if (e === 1) {
        item.disabled = item.disabled.filter((disabledItem) => disabledItem != index);
      } else if (e === 2 || e == undefined || e === '') {
        that.changeForm({
          [field + more]: '',
        });
        item.disabled.push(index);
      } else {
        item.disabled = item.disabled.filter((disabledItem) => disabledItem != index);
      }
    }
  }
}

通过引入一个 `fields` 数组，我们可以避免多次重复判断每个字段的 key。这样可以使代码更简洁，并且易于维护。