vue中的数字加法确保是数字

handleChange() {
  this.temp.plan_qty = Number(this.temp.odf_qty) + Number(this.temp.add_qty);
}

Explanation:

• Number(this.temp.odf_qty) ensures that this.temp.odf_qty is converted to a number.
• Number(this.temp.add_qty) does the same for this.temp.add_qty.
• Adding these two numbers together will give the correct result, and assigning it to this.temp.plan_qty ensures that plan_qty is also a number.