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RSS订阅原创 VUE3 IFC IFCLoader WebAssembly magic word 00 61 73 6d
VUE3 IFC WASM WebAssembly
2022-06-03 22:11:23
3792
原创 新版three.js-r129，THREE.OBJLoader is not a constructor
OBJLoader使用方法之一<script type="module"> import { OBJLoader } from './three/examples/jsm/loaders/OBJLoader.js'; var obj_loader = new OBJLoader() obj_loader.load('u1.obj', function (object) {//...------------------------------------...
2022-05-24 21:09:46
2669
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原创 python / flask sqlAlchemy 分页查询（paginate）实现举例，分页方式使用不当报404错误
flask 分页查询报404错误
2022-05-22 18:09:33
1705
原创 sqlalchemy 关联查询（outerjoin） 示意
Wh: code name emp_idEmp: code name from sqlalchemy.orm import aliasedEmp1 = aliased(Emp) #alias非必须，session.query(Wh, Emp1 ).outerjoin(Emp1, Emp1.id == Wh.emp_id)返回Tuple：（Wh,Emp,)Emp1 = aliased(Emp)session.query(Wh, Emp1....
2022-03-07 09:55:15
2011
2
原创 ImportError: cannot import name ‘MigrateCommand‘ from ‘flask_migrate‘
FLASK下执行数据库升级时，ImportError: cannot import name 'MigrateCommand' from 'flask_migrate' (venv3\lib\site-packages\flask_migrate\__init__.py)官方答复：https://github.com/miguelgrinberg/Flask-Migrate/issues/406Owner@miguelgrinberg miguelgrinberg commented on .
2021-09-12 13:00:44
4020
原创 VUE 动态三级路由界面不显示
原因：三级（四级、五级、...）路由的父路由（父菜单、中间菜单、无实际打开页面的虚拟节点、非叶子节点）component缺项（null，未设置）导致。解决：views下（放在这里引用路径简单）新建一个通用（可以到处使用）的vue文件，命名如SubView.vue，内容如下：<template> <router-view></router-view></template>各级父路由的component配置为SubView即可。如动态...
2021-09-06 11:09:50
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原创 flask, SQLAlchemy, with_entities, KeyedTuple,decimal示例
sums = DataRpt.query.\ with_entities(DataRpt.code,func.\ sum(DataRpt.cnt).label('cnt'))\ .group_by(DataRpt.code).\ order_by(DataRpt.code).all() if(sums==None or len(sums) == 0): return {"success":False,"co...
2021-08-26 20:11:08
721
原创 ModuleNotFoundError: No module named ‘flask._compat‘
PYTHON / FLASK / MIGRATE ...升级后，db_migrate出现ModuleNotFoundError: No module named 'flask._compat'错误，然后就是抄来抄去铺天盖地的主意让降级使用，能降级还升级干啥？正解是：修改flask_script/__init__.py把from ._compat import text_type改成from flask_script._compat import text_type【感谢：Python...
2021-08-26 19:58:26
4310
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原创 ubuntu18 重启后 网口灯不亮 网卡无IP
ifconfig -a 查看所有网卡名sudo dhclient 网卡名ifconfig网卡名发现网卡有了IP（v4），网口灯亮，一切恢复正常。【参考(12条消息) ubuntu18.04的ifconfig输出没有ip地址_本可奈何的博客-优快云博客_ubuntu没有ip地址】------------------谢绝任何形式的转载--------------------------...
2021-08-20 21:24:58
4042
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原创 UnsatisfiedLinkError tomcat SSL
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun java.lang.UnsatisfiedLinkError: org.apache.tomcat.jni.SSL.renegotiatePending(J)I at org.apache.tomcat.jni.SSL.renegotiatePending(Native Method) at org.apache.tomcat.util.net....
2021-08-10 12:39:26
502
原创 CURL SSL received a weak ephemeral Diffie-Hellman key
curl https://xxxx:8443/-i -k curl:(35) SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message修改tomcat/conf/server.xml, 更改配置, Connector增加sslEnabledProtocols和cipherssslEnabledProtocols="TLSv1,TLSv1.1,TLSv1.2"ciphers=
2021-08-10 12:29:42
606
原创 VUE & three.js 渲染报错 ‘modelViewMatrix‘ #＜Matrix4＞
现象：动画无法渲染，报错：three.module.js:20070 Uncaught TypeError: 'get' on proxy: property 'modelViewMatrix' is a read-only and non-configurable data property on the proxy target but the proxy did not return its actual value (expected '#<Matrix4>' but got '#<
2021-07-01 23:51:56
5259
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原创 VUE3全局参数（变量）示例
src/global/global.vue<script>//前后台设定，会影响到界面显示的菜单和按钮const Mode = 'frontend' //'back-end'export default{Mode,}</script>src/main.jsimport _global_ from './global/Global'//app.config.globalProperties.Const = _global_app.provide('...
2021-06-11 12:56:43
784
putty-Linux管理工具
2014-10-12
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