输入框实现格式保留2位小数

                class="uni-input"

                placeholder="请输入"

                :maxlength="moneyMaxLeng"

                type="text"

                @input="oninput"

                v-model="authData.companyInfo.income"

              />

oninput (e) {

      this.$nextTick(() => {

        let val = e.target.value.toString();

        val = val.replace(/[^\d.]/g, ""); //清除"数字"和"."以外的字符

        val = val.replace(/\.{2,}/g, "."); //只保留第一个. 清除多余的

        val = val.replace(/^0+\./g, '0.');

        val = val.match(/^0+[1-9]+/) ? val = val.replace(/^0+/g, '') : val

        val = (val.match(/^\d*(\.?\d{0,2})/g)[0]) || ''

        if (val.includes(".")) {

          let numDian = val.toString().split(".")[1].length;

          // let numZheng = val.toString().split(".")[0].length;

          if (numDian === 2) {

            this.moneyMaxLeng = val.length;

          }

        } else {

          this.moneyMaxLeng = 14;

        }

        let intPartFormat = val.toString().replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, "$&,") // 将整数部分逢三一断    

        this.authData.companyInfo.income = intPartFormat;

      });

    },