Files
Robot_Arm/arm/viewer/shot.py
T
cbb 531a293688 refactor(viewer): 单文件查看器拆成 webapp/ 多文件,走本地 http;Worker 换成真文件
前端不再是"一个 16MB HTML + 一个 2955 行模板"。现在:
  webapp/index.html      343 行 DOM 骨架,零内联数据
  webapp/styles/*.css    811 行 CSS 按段切成 8 个文件
  webapp/js/app.js       原内联主脚本逐字搬出(仍是普通脚本,S5 才改 ESM)
  webapp/js/ik-solver.js / ik-glue.js / vendor/three.min.js(原 web/ 三个文件)
  webapp/workers/ik.worker.js  真 Worker 文件
  webapp/generated/00_data.js  生成物(网格/工程图/行程/碰撞/螺钉)
  dist/机器人手臂3D查看器.html  分发用单文件,由 build_viewer 内联上面这些文件产出

入口:python -m arm.viewer.serve 后开 http://127.0.0.1:8123/
(serve 带 no-store,改完刷新即新构建,不再需要 Ctrl+F5;显式 MIME,
 .js 被 Windows 注册表判成 text/plain 会让模块静默不执行)

删掉 src/viewer_tpl.html 与 web/ 目录(旧产物移入 backups/pre_split_20261015/)。
工程图不再维护第二份 sheets.jsdata —— 直接读 draw_sheet 写出的 4 个真 SVG。

实测中修掉的问题:
- serve 的 / 原先"内部映射"到 webapp/index.html,导致文档基址是 /、相对路径的
  8 个 CSS 与 4 个 JS 全部 404(整页无样式无脚本)。改成 302 跳转。
- file:// 下 new Worker('workers/…') 构造阶段不抛错、错误以异步 onerror 到达,
  所以"构造失败才试 Blob 兜底"永远不会触发;改为按协议选路。两条路径都已实测
  backend=worker(http 走文件、file:// 走 Blob)。
- Worker 握手 3s 在 headless 并发下会误判"没起来"(截图里红徽标即此),放宽到 10s,
  并把后端状态暴露成 window.__IK_BACKEND / __IK_BACKEND_LOG 供测试直读。
- 截图竞态:4 并发 × 每页 14MB 数据时,虚拟时间预算会在页面加载完成前到期,
  拍到半初始化画面(且能"稳定地坏",旧基线里 m9_motion 就是这么混进来的)。
  并发降到 2、预算 40s、serve 加 HTTP/1.1+大缓冲+字节缓存,并用"同一构建两轮"
  重新界定稳定性:99 张逐字节一致、6 张属噪声改走像素容差(mean<=0.02、单像素<=32)。
- 关卡自身两处假通过已修:node 输出被 GBK 解码炸掉时不再算 PASS;
  线束干涉测试读不到通道源码时会 exit 2,而不是"零通道=零穿透=通过"。

关卡结果:python -m arm.build_model 退出码 0;10 项数据哈希与基线一致;
IK exact 段逐字节一致;99 张截图逐字节一致 + 6 张在噪声阈内;线束干涉测试 1800 点 0 穿透。
2026-10-15 04:31:31 +08:00

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# -*- coding: utf-8 -*-
"""Headless Edge screenshots of the viewer, for the visual self-check loop."""
import os
import subprocess
import sys
import shutil
import glob
try:
sys.stdout.reconfigure(encoding="utf-8")
except Exception:
pass
from arm.paths import DOCS, REPO
SHOTS = DOCS + "/shots"
# 虚拟时间预算:多文件版每页要拉 14MB 数据脚本 + 668KB three,4 并发下 20s 会不够(实测 8/10 视图两轮不一致)
# 时可上调。默认仍给 20000,用 ARM_VTB 覆盖做对照实验。
VTB = os.environ.get("ARM_VTB", "40000")
WORKERS = int(os.environ.get("ARM_SHOT_WORKERS", "2"))
# 前端拆分后是多文件 + Worker,只能走 http(file:// 下模块与 Worker 会被 CORS 拦掉)。
PORT = int(os.environ.get("ARM_PORT", "8123"))
BASE = "http://127.0.0.1:%d/webapp/index.html" % PORT
CAND = [r"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe",
r"C:\Program Files\Microsoft\Edge\Application\msedge.exe"]
EDGE = next((c for c in CAND if os.path.exists(c)), None)
if not EDGE:
EDGE = glob.glob(r"C:\Users\*\AppData\Local\Microsoft\Edge\*\msedge.exe")
EDGE = EDGE[0] if EDGE else None
if not EDGE:
raise SystemExit("msedge not found")
VIEWS = {
"01_iso": "?cam=iso",
"zoom_user": "?cam=iso&az=-0.9&po=1.15&rd=470&tx=30&ty=320&tz=-80&xray=0",
"user_harness_view": "?az=-1.85&po=1.32&rd=430&tx=0&ty=330&tz=-115&xray=0",
"user_harness_zoom": "?az=-1.85&po=1.32&rd=280&tx=-5&ty=360&tz=-115&xray=0",
"user_m1_rear": "?az=-1.25&po=1.35&rd=350&tx=-70&ty=570&tz=-128&xray=0",
"user_m1_exact": "?az=-1.5708&po=1.5708&rd=260&tx=0&ty=610&tz=-128&xray=0",
"user_m1_bypass_oblique": "?az=-1.0&po=1.15&rd=300&tx=-40&ty=580&tz=-140&xray=0",
"user_smooth_harness": "?az=1.50&po=1.45&rd=340&tx=-15&ty=560&tz=-128&xray=0",
"user_contour_harness": "?az=1.5708&po=1.50&rd=360&tx=-15&ty=320&tz=-128&xray=0",
"02_front": "?cam=front",
# 工程图 / 装配向导 / 运动模拟三种模式。URL 参数(?view=&sheet=&theme=&guide=)就是
# 为这几条截图加的:不把它们纳入基线,拆 CSS 与那 700 行工程图 JS 时等于没有关卡。
"m1_sheet_front": "?view=sheet",
"m2_sheet_joint": "?view=sheet&sheet=1",
"m3_sheet_exploded": "?view=sheet&sheet=2",
"m4_sheet_side": "?view=sheet&sheet=3",
"m5_guide_step1": "?view=sheet&sheet=guide&guide=0",
"m6_guide_step5": "?view=sheet&sheet=guide&guide=4",
"m7_sheet_blueprint": "?view=sheet&theme=blueprint",
"m8_sheet_dark": "?view=sheet&theme=dark",
"m9_motion": "?view=motion",
"03_side": "?cam=side",
"04_top": "?cam=top",
"05_exploded": "?cam=iso&expl=100",
"06_wrist": "?cam=wrist&xray=0",
"07_joint": "?cam=joint",
"08_pose": "?cam=iso&j2=35&j3=60&j4=-25&j1=25",
"09_sheet": "?sheet=1",
"10_solid": "?cam=iso&xray=0",
"11_tool_flange": "?cam=wrist&xray=0&j6=45",
"12_elbow_flare": "?cam=elbow&xray=0",
"13_forearm_side": "?cam=side&xray=0&rd=340&ty=245&tz=-135",
"user_target": "?cam=side&az=-1.5708&po=1.57&xray=0&rd=340&tx=100&ty=245&tz=-135",
"view_yz_pos_x": "?cam=side&az=0&po=1.57&xray=0&rd=340&tx=100&ty=245&tz=-135",
"view_yz_neg_x": "?cam=side&az=3.14159&po=1.57&xray=0&rd=340&tx=100&ty=245&tz=-135",
"view_iso_forearm": "?cam=side&az=-0.65&po=1.2&xray=0&rd=320&tx=100&ty=245&tz=-135",
"user_view1": "?cam=wrist&az=0.55&po=1.4&rd=310&xray=0",
"user_view2": "?cam=wrist&az=0.2&po=1.4&rd=290&xray=0",
"user_p04": "?cam=joint&az=-1.5708&po=1.57&rd=380&xray=0",
"user_p04_opp": "?cam=joint&az=1.5708&po=1.57&rd=380&xray=0",
"user_elbow_rear": "?az=1.5708&po=1.5708&rd=280&tx=95&ty=315&tz=-128&xray=0",
"user_p07_wrist": "?az=1.5708&po=1.5708&rd=240&tx=95&ty=235&tz=-128&xray=0",
"user_elbow_front": "?az=-1.5708&po=1.5708&rd=250&tx=18.5&ty=310&tz=-128&xray=0",
"user_p06_xz": "?az=1.5708&po=1.5708&rd=240&tx=18.5&ty=350&tz=-128&xray=0&hide=胸板,底脚,肩吊臂",
"user_p06_yz": "?az=0&po=1.5708&rd=260&tx=18.5&ty=350&tz=-110&xray=0",
"user_p06_iso": "?az=-0.65&po=1.25&rd=260&tx=-15&ty=350&tz=-128&xray=0",
"user_p07_creases": "?az=-0.65&po=1.25&rd=260&tx=30&ty=270&tz=-130&xray=0",
# 电机腔内壁(隐藏全部电机,从腔内看 R35/R30.15 两段同心圆弧是否连续)
"bay_p06_inside": "?az=1.5708&po=1.5708&rd=250&tx=18.5&ty=345&tz=-128&xray=0&hide=J1,J2,J3,J4,J5,J6",
"bay_p07_inside": "?az=1.5708&po=1.5708&rd=240&tx=18.5&ty=235&tz=-128&xray=0&hide=J1,J2,J3,J4,J5,J6",
"bay_p08_inside": "?az=1.5708&po=1.5708&rd=210&tx=18.5&ty=175&tz=-128&xray=0&hide=J1,J2,J3,J4,J5,J6",
"user_p04_side": "?az=1.5708&po=1.5708&rd=300&tx=18.5&ty=520&tz=-128&xray=0&hide=胸板,底脚,肩吊臂",
"user_p04_bottom": "?az=0.5&po=2.0&rd=240&tx=18.5&ty=490&tz=-128&xray=0&hide=胸板,底脚,肩吊臂",
"user_p04_bottom2": "?az=1.2&po=2.0&rd=260&tx=18.5&ty=490&tz=-128&xray=0&hide=胸板,底脚,肩吊臂",
"user_shoulder_solid": "?cam=joint&az=2.1&po=1.35&rd=380&xray=0",
"user_shoulder_xray": "?cam=joint&az=2.1&po=1.35&rd=380",
"user_shoulder_top": "?cam=joint&az=-0.6&po=0.6&rd=360&xray=0",
# P03 轻量化桁架版(孤立视图:只留 P03,隐藏其余零件/电机/螺钉/包络)
"p03_light_iso": "?az=0.62&po=1.15&rd=300&tx=-70&ty=548&tz=-128&xray=0&hide=P01,P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"p03_light_side": "?az=1.5708&po=1.5708&rd=320&tx=-70&ty=548&tz=-128&xray=0&hide=P01,P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"p03_light_rear": "?az=0.0&po=1.45&rd=300&tx=-70&ty=548&tz=-128&xray=0&hide=P01,P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"p03_light_join": "?az=0.62&po=1.15&rd=420&tx=18.5&ty=520&tz=-128&xray=0",
"p03_light_xray": "?az=0.62&po=1.15&rd=300&tx=-70&ty=548&tz=-128&xray=1&hide=P01,P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
# 减重版(2026-10-02):P04 立柱槽 / P06 过渡块窗 / P07 顶板槽 的孤立视图
# 俯视看朝上敞开的槽口,斜视看槽壁与留下来的抗弯腹板
"hollow_p04_top": "?az=0.0&po=0.05&rd=250&tx=18.5&ty=585&tz=-128&xray=0&hide=P01,P02,P03,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"hollow_p04_iso": "?az=0.7&po=1.05&rd=280&tx=18.5&ty=585&tz=-128&xray=0&hide=P01,P02,P03,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"hollow_p07_top": "?az=0.0&po=0.05&rd=230&tx=18.5&ty=270&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P06,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"hollow_p07_iso": "?az=0.7&po=1.05&rd=260&tx=18.5&ty=275&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P06,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
"hollow_p06_iso": "?az=0.7&po=1.05&rd=190&tx=18.5&ty=368&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P07,P08,P09,M1,M2,M3,M4,M5,M6,S0,S1,ENV",
# P03↔立柱 安装接口(新版 4xM5 从腔体上方拧入):俯视看螺钉落位
"p03_mount_top": "?az=0.9&po=1.30&rd=190&tx=-115&ty=476&tz=-128&xray=0&hide=P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,ENV",
"p03_mount_iso": "?az=2.2&po=0.95&rd=230&tx=-115&ty=486&tz=-128&xray=0&hide=P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,ENV",
"p03_mount_loose": "?az=0.9&po=0.42&rd=260&tx=-115&ty=500&tz=-128&xray=0&expl=60&hide=P02,P04,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,ENV",
"j3_前端压盖_装配": "?az=0.7&po=2.72&rd=190&tx=19.5&ty=396&tz=-128&xray=0&hide=立柱,底座,肩关节安装悬臂,肩叉,大臂骨架,小臂骨架,腕部转接座,末端工具法兰,M1,M2,M4,M5,M6,包络经纬网",
"j3_前端压盖_全件": "?az=0.7&po=2.6&rd=300&tx=19.5&ty=420&tz=-128&xray=0",
# 承压面下沉 2mm 留下的"悬空凸台"(2026-10-04 整改):沿电机轴线从尾端面方向看,
# 四个视图分别对应 P04/P05/P06/P07 的后端。ax/po 沿轴向,rd 拉近到 R35 座圈。
# 沿电机轴线从尾端面看过去:承压面(R35圆面) + 4xS02 沉孔,凸台消失后应是干净圆面
"boss_p04": "?az=0.55&po=1.30&rd=150&tx=19.5&ty=490&tz=-158&xray=0&hide=P01,P02,P03,P05,P06,P07,P08,P09,M3,M4,M5,M6,ENV",
"user_fork_fixed": "?az=0.55&po=1.30&rd=150&tx=19.5&ty=490&tz=-158&xray=0&hide=P01,P02,P03,P06,P07,P08,P09,M1,M4,M5,M6,ENV,S0,S1",
"bay_p04_inside": "?az=0.55&po=2.10&rd=150&tx=19.5&ty=490&tz=-158&xray=0&hide=P01,P02,P03,P05,P06,P07,P08,P09,M1,M2,M3,M4,M5,M6,ENV,S0,S1",
"bay_p06_inside": "?az=0.55&po=2.10&rd=150&tx=19.5&ty=332&tz=-158&xray=0&hide=P01,P02,P03,P04,P05,P07,P08,P09,M1,M2,M3,M4,M5,M6,ENV,S0,S1",
"bay_p07_inside": "?az=0.55&po=2.10&rd=150&tx=19.5&ty=227&tz=-158&xray=0&hide=P01,P02,P03,P04,P05,P06,P08,P09,M1,M2,M3,M4,M5,M6,ENV,S0,S1",
"p04_both_ends": "?az=1.5708&po=1.5708&rd=200&tx=19.5&ty=490&tz=-128&xray=0&hide=P01,P02,P03,P05,P06,P07,P08,P09,M1,M3,M4,M5,M6,ENV,S0,S1",
"p04_m2_side": "?az=1.2&po=1.9&rd=240&tx=19.5&ty=490&tz=-128&xray=0&hide=P01,P02,P03,P05,P06,P07,P08,P09,M1,M3,M4,M5,M6,ENV,S0,S1",
"p06_m4_side": "?az=1.2&po=1.9&rd=240&tx=19.5&ty=332&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P07,P08,P09,M1,M2,M3,M5,M6,ENV,S0,S1",
"p07_m5_side": "?az=1.2&po=1.9&rd=240&tx=19.5&ty=227&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P06,P08,P09,M1,M2,M3,M4,M6,ENV,S0,S1",
"p05_m3_side": "?az=1.2&po=1.9&rd=240&tx=19.5&ty=400&tz=-128&xray=0&hide=P01,P02,P03,P04,P06,P07,P08,P09,M1,M2,M4,M5,M6,ENV,S0,S1",
"boss_p05": "?az=1.5708&po=1.5708&rd=190&tx=18.5&ty=392&tz=-128&xray=0&hide=P01,P02,P03,P04,P06,P07,P08,P09,M2,M4,M5,M6,ENV",
"user_compare_view": "?cam=side&az=0&po=1.5708&rd=460&tx=19.5&ty=380&tz=-128&xray=0&hide=P01,P02,P03,P09,M1,M6,ENV",
"user_p07_check": "?az=1.5708&po=1.5708&rd=260&tx=19.5&ty=220&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P06,P09,M1,M2,M3,M4,M5,M6,ENV",
"boss_p06": "?az=1.5708&po=1.5708&rd=190&tx=18.5&ty=332&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P07,P08,P09,M1,M2,M3,M5,M6,ENV",
"boss_p07": "?az=0&po=0.0&rd=210&tx=19.5&ty=215&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P06,P08,P09,M1,M2,M3,M4,M6,ENV",
"svg_side": f"http://127.0.0.1:{PORT}/docs/sheet_side.svg",
"svg_joint": f"http://127.0.0.1:{PORT}/docs/sheet_joint.svg",
"svg_exploded": f"http://127.0.0.1:{PORT}/docs/sheet_exploded.svg",
"user_circle_check": "?az=0.8&po=1.95&rd=240&tx=19.5&ty=430&tz=-128&xray=0&hide=M1,M2,M3,M4,M5,M6,ENV",
"user_exact_view": "?az=1.5708&po=1.92&rd=150&tx=19.5&ty=440&tz=-128&xray=0&hide=P01,P02,P03,M1,M2,M3,M4,M5,M6,ENV",
"shot_p08_user": "?az=1.5708&po=1.92&rd=150&tx=19.5&ty=176&tz=-128&xray=0&hide=P01,P02,P03,P04,P05,P06,P07,P09,M1,M2,M3,M4,M5,M6,ENV",
"p05_flank_view": "?az=0&po=1.5708&rd=200&tx=19.5&ty=440&tz=-135&xray=0&hide=P01,P02,P03,P07,P08,P09,M1,M4,M5,M6,ENV",
"harness_full_iso": "?cam=iso&xray=0",
"harness_overview": "?az=-0.7&po=1.2&rd=520&tx=0&ty=400&tz=-120&xray=0",
"harness_xray_internal": "?az=-0.7&po=1.2&rd=520&tx=0&ty=400&tz=-120&alpha=0.35&xray=1",
"harness_p07_window": "?az=-0.65&po=1.25&rd=260&tx=25&ty=275&tz=-130&xray=0",
"harness_p07_xray": "?az=-0.65&po=1.25&rd=260&tx=25&ty=275&tz=-130&alpha=0.35&xray=1",
"harness_p04_p05": "?az=0.8&po=1.35&rd=280&tx=25&ty=470&tz=-128&xray=0",
"harness_p04_p05_xray": "?az=0.8&po=1.35&rd=280&tx=25&ty=470&tz=-128&alpha=0.35&xray=1",
"harness_p06_window": "?az=-0.65&po=1.25&rd=240&tx=25&ty=355&tz=-128&xray=0",
"harness_xray_full": "?cam=iso&xray=1",
# 扎带拱桥核验:沿 ±Y 正视肩部,确认三个拱桥各自露出多少、线束是否压在桥上
"tie_probe_negY": "?az=1.5708&po=1.5708&rd=460&tx=-30&ty=590&tz=-128&xray=0",
"tie_probe_posY": "?az=-1.5708&po=1.5708&rd=460&tx=-30&ty=590&tz=-128&xray=0",
"tie_after_negY": "?az=1.5708&po=1.5708&rd=300&tx=-25&ty=600&tz=-128&xray=0",
"tie_after_oblique": "?az=2.05&po=1.30&rd=330&tx=-25&ty=600&tz=-128&xray=0",
"tie_after_close": "?az=1.90&po=1.50&rd=180&tx=-25&ty=605&tz=-100&xray=0",
# P06/P07 −X 侧线束走廊:从 −X、−Y 斜看(纯 −X 会被蓝色立柱挡住)
"tie_after_p0607": "?az=2.35&po=1.5708&rd=300&tx=0&ty=290&tz=-102.5&xray=0",
"tie_after_p0607_obl": "?az=2.60&po=1.35&rd=260&tx=-5&ty=290&tz=-110&xray=0",
}
os.makedirs(SHOTS, exist_ok=True)
want = sys.argv[1:] or list(VIEWS)
def take_shot(nm):
q = VIEWS[nm]
out = "%s/%s.png" % (SHOTS, nm)
import time, tempfile
t_bust = int(time.time() * 1000)
# serve.py 已下发 Cache-Control: no-store,不再需要 _t= 破缓存
target = q if q.startswith("http") else BASE + q + (
"&still=1" if "?" in q else "?still=1")
udd = tempfile.mkdtemp(prefix="eshot")
cmd = [EDGE, "--headless=new", "--use-gl=angle", "--use-angle=d3d11",
"--disable-cache", "--disable-application-cache", "--disk-cache-size=0",
"--user-data-dir=" + udd,
"--enable-gpu-rasterization", "--ignore-gpu-blocklist",
"--hide-scrollbars", "--force-device-scale-factor=1",
"--window-size=1500,860", "--virtual-time-budget=" + VTB,
"--screenshot=" + out, target]
r = subprocess.run(cmd, capture_output=True, timeout=180)
shutil.rmtree(udd, ignore_errors=True)
ok = os.path.exists(out) and os.path.getsize(out) > 20000
err = (r.stderr or b"").decode("utf-8", errors="ignore").strip()[:90].replace("\n", " ")
sz = os.path.getsize(out) if os.path.exists(out) else 0
print("%-18s %s %8s %s" % (nm, "OK " if ok else "FAIL", sz, err), flush=True)
return ok
def warmup():
"""拉一次最大的那个数据脚本,成功才算服务可用。"""
import urllib.request
try:
with urllib.request.urlopen(BASE, timeout=5) as r:
r.read()
with urllib.request.urlopen("http://127.0.0.1:%d/webapp/generated/00_data.js" % PORT,
timeout=30) as r:
n = len(r.read())
return n > 1000000
except Exception:
return False
def ensure_server():
"""端口没开就自己拉一个 serve 子进程,跑完回收;不让截图依赖"你先把服务开着"。"""
import socket
import time
sk = socket.socket()
try:
sk.connect(("127.0.0.1", PORT))
sk.close()
return None
except OSError:
pass
errf = open(os.path.join(REPO, "scratch", "_serve_err.txt"), "wb")
p = subprocess.Popen([sys.executable, "-m", "arm.viewer.serve", "--port", str(PORT)],
cwd=REPO, stdout=subprocess.DEVNULL, stderr=errf)
for _ in range(60):
time.sleep(0.25)
sk = socket.socket()
try:
sk.connect(("127.0.0.1", PORT))
sk.close()
if warmup():
print("serve 已拉起 :%d(首屏数据已预热)" % PORT, flush=True)
return p
except OSError:
pass
finally:
try:
sk.close()
except Exception:
pass
p.kill()
err = open(os.path.join(REPO, "scratch", "_serve_err.txt"), "rb").read().decode("utf-8", "ignore").strip()[-400:]
raise SystemExit("serve 拉不起来:端口 %d 可能被占;子进程输出:\n%s" % (PORT, err))
if __name__ == "__main__":
from concurrent.futures import ThreadPoolExecutor
srv = ensure_server()
try:
with ThreadPoolExecutor(max_workers=WORKERS) as executor:
results = list(executor.map(take_shot, want))
finally:
if srv:
srv.terminate()
print("edge:", EDGE)
print("all shots ok:", all(results))