a="intelligent" b="medicine" #**********begin1********** print("输出获取字符",a(1)) #**********end1********** #**********begin2********** print("截取字符",a[0:3]) #**********end2**********

答案如下：

#**********begin1********** 
print("输出获取字符",a[1]) 
#**********end1********** 

#**********begin2********** 
print("截取字符",a[0:3]) 
#**********end2********** 

解释：

- 在 Python 中，要获取一个字符串中的某个字符，可以使用方括号 [] 运算符，后面加上该字符在字符串中的索引位置（从 0 开始），如 a[1] 获取的是字符串 a 中的第二个字符 "n"。
- 要截取一个字符串的一部分，可以使用方括号 [] 运算符，后面加上起始位置和结束位置（不包含结束位置本身）的索引位置，中间用冒号 : 分隔，如 a[0:3] 获取的是字符串 a 中的前三个字符 "int"。

相关问题

SELECT COMPANY_SEGMENT, totalMoney,educationMoney,cityEducationMoney, (totalMoney+constructionMoney+educationMoney+cityEducationMoney) FROM (SELECT COMPANY_SEGMENT, sum( abs( PERIOD_OCCURRENCE ) ) AS "totalMoney", sum( abs( PERIOD_OCCURRENCE ) ) * 0.07 AS "constructionMoney", sum( abs( PERIOD_OCCURRENCE ) ) * 0.03 AS "educationMoney", sum( abs( PERIOD_OCCURRENCE ) ) * 0.02 AS "cityEducationMoney" FROM INTELLIGENT_BALANCE_FORWARD WHERE IS_FLAG = 0 AND ACCOUNT_SEGMENT = '2104080100' GROUP BY COMPANY_SEGMENT) GROUP BY COMPANY_SEGMENT

您的查询语句如下：

SELECT COMPANY_SEGMENT, totalMoney, educationMoney, cityEducationMoney, (totalMoney+constructionMoney+educationMoney+cityEducationMoney)
FROM (
    SELECT
        COMPANY_SEGMENT,
        SUM(ABS(PERIOD_OCCURRENCE)) AS totalMoney,
        SUM(ABS(PERIOD_OCCURRENCE)) * 0.07 AS constructionMoney,
        SUM(ABS(PERIOD_OCCURRENCE)) * 0.03 AS educationMoney,
        SUM(ABS(PERIOD_OCCURRENCE)) * 0.02 AS cityEducationMoney
    FROM
        INTELLIGENT_BALANCE_FORWARD
    WHERE
        IS_FLAG = 0
        AND ACCOUNT_SEGMENT = '2104080100'
    GROUP BY
        COMPANY_SEGMENT
) 
GROUP BY COMPANY_SEGMENT;

这个查询语句从表`INTELLIGENT_BALANCE_FORWARD`中选择了满足条件`IS_FLAG = 0`和`ACCOUNT_SEGMENT = '2104080100'`的记录。然后，根据`COMPANY_SEGMENT`对结果进行分组，并计算了每个分组的总金额(`totalMoney`)、建设金额(`constructionMoney`)、教育金额(`educationMoney`)、城市教育金额(`cityEducationMoney`)和总金额(`totalMoney+constructionMoney+educationMoney+cityEducationMoney`)。最后，按照`COMPANY_SEGMENT`进行分组并返回结果。

java isapi /ISAPI/Intelligent/FDLib?format=json示例

这个示例是一个使用Java调用ISAPI的例子，其中ISAPI是一个用于智能交通、智能安防等领域的接口。

在这个示例中，我们使用Java的HttpURLConnection类来发送HTTP请求，请求的URL是/ISAPI/Intelligent/FDLib，格式为json。这个URL是用于获取人脸库信息的。

示例代码如下：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class ISAPIDemo {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://your-ip-address/ISAPI/Intelligent/FDLib?format=json");
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(5000);
            conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");

            BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
            String line;
            while ((line = in.readLine()) != null) {
                System.out.println(line);
            }
            in.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

需要替换示例中的`your-ip-address`为实际的IP地址。同时，需要根据具体的应用场景进行参数配置和调整。