keysona

#!/bin/bash

# 需要用root用户来安装crontab任务
# $ sudo su -
# # crontab -e
# 复制这个: */1 * * * * /Users/keysona/OneDrive/bin/free_mem.sh
# */1 代表每分钟执行一次脚本

limit=500  # 小于500MB，自动清理内存
mem=$(top -l 1 | head -n 10 | grep PhysMem | cut -f6 -d ' ' | cut -f1 -d 'M')

keysona

4 thread and 400 connections in 30 seconds

aiohttp - no uvloop
    Running 30s test @ http://127.0.0.1:8000
    4 threads and 400 connections
    Thread Stats   Avg      Stdev     Max   +/- Stdev
        Latency    73.50ms    9.94ms 370.71ms   81.79%
        Req/Sec     1.36k   339.69     2.71k    56.10%
    161299 requests in 30.03s, 23.84MB read
    Requests/sec:   5371.45

keysona

<?xml version="1.0" encoding="UTF-8"?>

<China>
  <province id="01" name="北京">
    <city id="0101" name="北京">
      <county id="010101" name="北京" weatherCode="101010100"/>
      <county id="010102" name="海淀" weatherCode="101010200"/>
      <county id="010103" name="朝阳" weatherCode="101010300"/>
      <county id="010104" name="顺义" weatherCode="101010400"/>
      <county id="010105" name="怀柔" weatherCode="101010500"/>

keysona

docker run --name mysql -e MYSQL_ROOT_PASSWORD=dg123321 -e MYSQL_DATABASE=blog -v  /data/blog:/var/lib/mysql -v /config/mysql:/etc/mysql/conf.d -d mysql:5.7 --character-set-server=utf8 --collation-server=utf8_general_ci

keysona

{
    "湖南省": [
        "湘潭大学",
        "吉首大学",
        "湖南大学",
        "中南大学",
        "湖南科技大学",
        "长沙理工大学",
        "湖南农业大学",
        "中南林业科技大学",

keysona

-256 ~ 256

keysona

## How CSS works

- **HTML**, document's content.
- **CSS** (Cascading Style Sheets), document's style.
- **DOM** (Document Object Model), tree-like structure, formed from DOM node, combines the document's content with its style in memory.
- *Markup language*: HTML, SVG, XML.
- **CSS Rule** formed from: properties & selector.
- CSS use： external stylesheet (```<link>```), internal stylesheet (```<style>```), inline styles.

![work](https://mdn.mozillademos.org/files/11781/rendering.svg)

keysona

import { Component } from '@angular/core';

import { NavController } from 'ionic-angular';

@Component({
  selector: 'page-component',
  templateUrl: `
    <ion-header>
    <ion-navbar>
      <ion-title text-center>

keysona

edit ~/.npmrc
add "http_proxy=http://127.0.0.1:9527"

keysona

不然在android studio引用时,会报运行时错误:返回值不是0,而是1.
eclipse 要删掉没有用到的包,不然在android studio也会出现同样的问题.