小编Jes*_*Jie的帖子

我有 2 个下拉列表，在用户选择列表之一后从列表的字符串返回字符串变量，以及一个处理更新数据到 firestore 的按钮。

这是我创建的变量

  String? selectedMonthEnd;
  String? selectedYearEnd;

这是2个下拉菜单的代码

  final month = [
    'January','Febuary','March','April','May','June','July','August','September','October','November','December'];
  final year = [
    '1900','1901','1902','1903','1904','1905',];

Row(
                  children: [
                    //Start Month
                    Container(
                      margin: EdgeInsets.only(
                        top: 4,
                        bottom: 10,
                        left: 26,
                      ),
                      width: 170,
                      padding:
                          EdgeInsets.symmetric(horizontal: 12, vertical: 4),
                      decoration: BoxDecoration(
                        borderRadius: BorderRadius.circular(12),
                        border:
                            Border.all(color: Colors.grey.shade700, width: 1.2),
                      ),
                      child: DropdownButtonHideUnderline(
                        child: DropdownButton<String>(
                          hint: Text(
                            'Choose Month',
                            style: TextStyle(
                                fontSize: 17,
                                color: Colors.black,
                                fontWeight: FontWeight.bold),
                          ),
                          value: selectedMonthStart,
                          isExpanded: true,
                          iconSize: 30,
                          icon: Icon(
                            Icons.arrow_drop_down,
                            color: …

这是我到目前为止的代码

    $dataraw = $_SESSION['image'];
    $datagambar = json_encode($dataraw);

    echo '<pre>';
    print_r($dataraw);
    echo '</pre>';

    print($escaped_json);

    $type1 = gettype($dataraw);
    print($type1);

    $type2 = gettype($datagambar);
    print($type2);

这是$dataraw输出，类型是数组

Array
(
    [0] => Array
        (
            [FileName] => 20221227_202035.jpg
            [Model] => SM-A528B
            [Longitude] => 106.904251
            [Latitude] => -6.167665
        )

    [1] => Array
        (
            [FileName] => 20221227_202157.jpg
            [Model] => SM-A528B
            [Longitude] => 106.9042428
            [Latitude] => -6.1676580997222
        )

)

这是 $datagambar 输出，类型是字符串

[{"FileName":"20221227_202035.jpg","Model":"SM-A528B","Longitude":106.904251,"Latitude":-6.167665},{"FileName":"20221227_202157.jpg","Model":"SM-A528B","Longitude":106.9042428,"Latitude":-6.167658099722223}]

传递给Python

echo shell_exec("D:\Anaconda\python.exe D:/xampp/htdocs/Klasifikasi_KNN/admin/test.py $datagambar");

这是我的 python test.py

import sys, json
import os
import pymysql
import pandas …