更新啦！第 59 期《HelloGitHub》开源月刊

package main
import (    "github.com/anthonynsimon/bild/effect"    "github.com/anthonynsimon/bild/imgio"    "github.com/anthonynsimon/bild/transform")
func main() {    img, err := imgio.Open("input.jpg")    if err != nil {        fmt.Println(err)        return    }
    inverted := effect.Invert(img)    resized := transform.Resize(inverted, 800, 800, transform.Linear)    rotated := transform.Rotate(resized, 45, nil)
    if err := imgio.Save("output.png", rotated, imgio.PNGEncoder()); err != nil {        fmt.Println(err)        return    }}

Document doc = Jsoup.connect("https://en.wikipedia.org/").get();log(doc.title());Elements newsHeadlines = doc.select("#mp-itn b a");for (Element headline : newsHeadlines) {  log("%s\n\t%s",     headline.attr("title"), headline.absUrl("href"));}

// 在登录时写入当前会话的账号 ID StpUtil.setLoginId(10001);	
// 然后在任意需要校验登录处调用以下 API：如果当前会话未登录// 这句代码会抛出 `NotLoginException` 异常StpUtil.checkLogin();	
// 还有以下功能StpUtil.logoutByLoginId(10001);     // 让账号为 10001 的会话注销登录（踢人下线）StpUtil.hasRole("super-admin");     // 查询当前账号是否含有指定角色标识, 返回 true 或 falseStpUtil.setLoginId(10001, "PC");        // 指定设备标识登录StpUtil.logoutByLoginId(10001, "PC");   // 指定设备标识进行强制注销 (不同端不受影响)StpUtil.switchTo(10044);                // 将当前会话身份临时切换为其它账号

<script src="//instant.page/5.1.0" type="module" integrity="sha384-by67kQnR+pyfy8yWP4kPO12fHKRLHZPfEsiSXR8u2IKcTdxD805MGUXBzVPnkLHw"></script>

@vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml')def test_iana():    response = urllib2.urlopen('http://www.iana.org/domains/reserved').read()    assert 'Example domains' in response

# 找出元素下的所有链接about.absolute_links{'http://brochure.getpython.info/', 'https://www.python.org/about/quotes/', 'https://www.python.org/about/help/'}# 匹配内容>>> r.html.search('Python is a {} language')[0]programming# 直接提取属性的值>>> about.attrs{'id': 'about', 'class': ('tier-1', 'element-1'), 'aria-haspopup': 'true'}# 呈现加载 JS 后的动态内容r.html.render()

# 安装：pip install alive-progressfrom alive_progress import alive_bar
with alive_bar(total) as bar:  # declare your expected total    for item in items:         # iterate as usual over your items        ...                    # process each item        bar()                  # call after consuming one item

from blind_watermark import WaterMark
bwm_obj = WaterMark(password_wm=1, password_img=1)# 原图bwm_obj.read_img('pic/原图.jpg')# 水印图bwm_obj.read_wm('pic/水印.png')# 打水印后的图bwm_obj.embed('output/结果.png')# 注意需要设定水印的长宽 wm_shapebwm_objextract(filename='output/结果.png', wm_shape=(120, 120), out_wm_name='output/解出的水印.png', )

from pyg2plot import Plot
line = Plot("Line")
line.set_options({  "height": 400, # set a default height in jupyter preview  "data": [    { "year": "1991", "value": 3 },    { "year": "1992", "value": 4 },    { "year": "1993", "value": 3.5 },    { "year": "1994", "value": 5 },    { "year": "1995", "value": 4.9 },    { "year": "1996", "value": 6 },    { "year": "1997", "value": 7 },    { "year": "1998", "value": 9 },    { "year": "1999", "value": 13 },  ],  "xField": "year",  "yField": "value",})
line.render_notebook()

import SQLite
let db = try Connection("path/to/db.sqlite3")
let users = Table("users")let id = Expression<Int64>("id")let name = Expression<String?>("name")let email = Expression<String>("email")
try db.run(users.create { t in    t.column(id, primaryKey: true)    t.column(name)    t.column(email, unique: true)})
// CREATE TABLE "users" (//     "id" INTEGER PRIMARY KEY NOT NULL,//     "name" TEXT,//     "email" TEXT NOT NULL UNIQUE// )