从catch块获取错误行号

try {
    // 代码块
} catch (Exception e) {
    e.printStackTrace();
    StackTraceElement[] stackTrace = e.getStackTrace();
    if (stackTrace.length > 0) {
        int lineNumber = stackTrace[0].getLineNumber();
        System.out.println("错误行号：" + lineNumber);
    }
}

import traceback

try:
    # 代码块
except Exception as e:
    traceback.print_exc()
    tb = traceback.extract_tb(e.__traceback__)
    if tb:
        file_name, line_number, _, _ = tb[-1]
        print("错误行号：", line_number)

#include <iostream>

int main() {
    try {
        // 代码块
    } catch (const std::exception& e) {
        std::cout << "错误行号：" << __LINE__ << std::endl;
    }
    return 0;
}