From 0d80d6f5748ca9fe6b5131db3f1fa07730902465 Mon Sep 17 00:00:00 2001
From: zhang_li <2235006734@qqq.com>
Date: Mon, 15 Jul 2024 09:26:16 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E7=B2=BE=E5=BA=A6=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../supplierdeliver/supplierdeliverRequestMain/labelForm.vue  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/views/wms/purchasereceiptManage/supplierdeliver/supplierdeliverRequestMain/labelForm.vue b/src/views/wms/purchasereceiptManage/supplierdeliver/supplierdeliverRequestMain/labelForm.vue
index aca148dcb..7ff4af19c 100644
--- a/src/views/wms/purchasereceiptManage/supplierdeliver/supplierdeliverRequestMain/labelForm.vue
+++ b/src/views/wms/purchasereceiptManage/supplierdeliver/supplierdeliverRequestMain/labelForm.vue
@@ -168,6 +168,7 @@
 </template>
 <script setup lang="ts">
 import * as defaultButtons from '@/utils/disposition/defaultButtons'
+import * as accuracyFun from "@/utils/calculate"
 const message = useMessage() // 消息弹窗
 const { t } = useI18n() // 国际化
 
@@ -381,7 +382,8 @@ const submitForm = () => {
     let obj = tableData.value.find((item) => {
       item.allNumber = 0
       item.packageList.forEach((cur) => {
-        item.allNumber += parseFloat(cur.qtyOne) || 0
+        item.allNumber = accuracyFun.add(item.allNumber , parseFloat(cur.qtyOne)?parseFloat(cur.qtyOne):0)
+        // item.allNumber += parseFloat(cur.qtyOne) || 0
       })
       return item.allNumber != parseFloat(item.qty)
     })

From 1c8c6217673ba4f4f3e3c8dde7cb053deb2ba868 Mon Sep 17 00:00:00 2001
From: zhang_li <2235006734@qqq.com>
Date: Mon, 15 Jul 2024 09:33:48 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E7=B2=BE=E5=BA=A6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/utils/calculate.ts | 105 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 src/utils/calculate.ts

diff --git a/src/utils/calculate.ts b/src/utils/calculate.ts
new file mode 100644
index 000000000..372378039
--- /dev/null
+++ b/src/utils/calculate.ts
@@ -0,0 +1,105 @@
+
+  // 判断传入的值-是否为整数
+  function isInteger(obj) {
+    return Math.floor(obj) === obj
+  }
+
+  // 将一个浮点数转成整数，返回整数和倍数。如 3.14 >> 314，倍数是 100
+  // @param floatNum { number } 小数
+  // @return { object }
+  // { times: 100, num: 314 }
+
+  // 用于返回整数和倍数
+  function toInteger(floatNum) {
+    // 声明一个对象用来保存倍数和整数
+    const ret = { times: 1, num: 0 }
+    // 第一种情况：是整数
+    if (isInteger(floatNum)) {
+      // 把整数给 ret中的   num
+      ret.num = floatNum
+      return ret //  最后返回 ret
+    }
+
+    // 第二种情况-不是整数，
+    const strfi = floatNum + ''  // 转为字符串  "0.1"
+    const dotPos = strfi.indexOf('.')  // 查询小数点
+    const len = strfi.substr(dotPos + 1).length; //  获取小数点后的长度
+    const times = Math.pow(10, len)  // 放大多少倍
+    const intNum = Number(floatNum.toString().replace('.', ''))  // 返回 转为字符串  截取掉小数点  最后转为数字（整数）
+    // 把获取到的倍数和整数存入对象中
+    ret.times = times
+    ret.num = intNum
+    return ret
+  }
+
+
+  // 核心方法，实现加减乘除运算，确保不丢失精度
+  // 思路：把小数放大为整数（乘），进行算术运算，再缩小为小数（除）
+  // @param a { number } 运算数1
+  // @param b { number } 运算数2
+  // @param digits { number } 精度，保留的小数点数，比如 2, 即保留为两位小数
+  // @param op { string } 运算类型，有加减乘除（add / subtract / multiply / divide）
+
+
+
+  function operation(a, b, digits, op) {
+    // 获取倍数和整数的对象
+    const o1 = toInteger(a)
+    const o2 = toInteger(b)
+    // 提取整数
+    const n1 = o1.num
+    const n2 = o2.num
+    // 提取倍数
+    const t1 = o1.times
+    const t2 = o2.times
+
+    // 获取最大倍数
+    const max = t1 > t2 ? t1 : t2
+    let result = 0  //
+
+    switch (op) {
+      case 'add':
+        if (t1 === t2) { // 两个小数位数相同
+          result = n1 + n2    //  
+        } else if (t1 > t2) { // o1 小数位 大于 o2
+          result = n1 + n2 * (t1 / t2)
+        } else { // o1 小数位 小于 o2
+          result = n1 * (t2 / t1) + n2
+        }
+        return result / max
+      case 'subtract':
+        if (t1 === t2) {
+          result = n1 - n2
+        } else if (t1 > t2) {
+          result = n1 - n2 * (t1 / t2)
+        } else {
+          result = n1 * (t2 / t1) - n2
+        }
+        return result / max
+      case 'multiply':
+        result = (n1 * n2) / (t1 * t2)
+        return result
+      case 'divide':
+        result = (n1 / n2) * (t2 / t1)
+        return result
+    }
+  }
+
+  // 加减乘除的四个接口
+export function add(a, b, digits) {
+    return operation(a, b, digits, 'add')
+  }
+export function subtract(a, b, digits) {
+    return operation(a, b, digits, 'subtract')
+  }
+export function multiply(a, b, digits) {
+    return operation(a, b, digits, 'multiply')
+  }
+export function divide(a, b, digits) {
+    return operation(a, b, digits, 'divide')
+  }
+
+
+
+// console.log(floatObj.add(0.5, 0.2))
+// console.log(floatObj.add(0.12, 0.3))