• 这是一个测试1

Chapter 1

Section 1

Section 2

Chapter 2

Section 1

Section 2

Chapter 3

Section 1

Section 2

Chapter 4

Section 1

Section 2

Chapter 5

Section 1

Section 2

Chapter 6

Section 1

Section 2

  • 这是一个测试1-1
{
  "type": "excalidraw",
  "version": 2,
  "source": "https://excalidraw.com",
  "elements": [
    {
      "type": "rectangle",
      "version": 175,
      "versionNonce": 279344008,
      "isDeleted": false,
      "id": "2ZYh24ed28FJ0yE-S3YNY",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 580,
      "y": 140,
      "strokeColor": "#000000",
      "backgroundColor": "#15aabf",
      "width": 80,
      "height": 19.999999999999996,
      "seed": 521916552,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "Be1y2yzhV3Zd4nwCro__8"
      ]
    },
    {
      "type": "rectangle",
      "version": 180,
      "versionNonce": 164784376,
      "isDeleted": false,
      "id": "bO0OVt6m7LowYpq22ePCA",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 660,
      "y": 140,
      "strokeColor": "#000000",
      "backgroundColor": "#4c6ef5",
      "width": 120,
      "height": 19.999999999999996,
      "seed": 1303206904,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "KaCO9-QjUenSyCuuanoTo"
      ]
    },
    {
      "type": "rectangle",
      "version": 183,
      "versionNonce": 27181704,
      "isDeleted": false,
      "id": "jz0Huq9-s6pNxDw0RqHcR",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 780,
      "y": 140,
      "strokeColor": "#000000",
      "backgroundColor": "#fab005",
      "width": 180,
      "height": 19.999999999999996,
      "seed": 861962120,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "74ifmqmu0vN0NK0_0FwPm"
      ]
    },
    {
      "type": "rectangle",
      "version": 192,
      "versionNonce": 2123008504,
      "isDeleted": false,
      "id": "UnmNTmwJtm6moubcGtSgB",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 960,
      "y": 140,
      "strokeColor": "#000000",
      "backgroundColor": "#fa5252",
      "width": 80,
      "height": 19.999999999999996,
      "seed": 277814520,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "1v60NED2criGG-wo9-oQL"
      ]
    },
    {
      "type": "rectangle",
      "version": 202,
      "versionNonce": 1823814024,
      "isDeleted": false,
      "id": "of76J4WOJHnHi0L61Vst_",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 1040,
      "y": 140,
      "strokeColor": "#000000",
      "backgroundColor": "#be4bdb",
      "width": 180,
      "height": 19.999999999999996,
      "seed": 1496796808,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "jjuPzyRneMv3f65lps_6a"
      ]
    },
    {
      "type": "rectangle",
      "version": 193,
      "versionNonce": 1234602744,
      "isDeleted": false,
      "id": "SlvbjeV-9lXbcrlKib-hj",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 1220,
      "y": 140,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 60,
      "height": 19.999999999999996,
      "seed": 1938865656,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "5QQzhw_uqk_rBaW2wMriT"
      ]
    },
    {
      "type": "text",
      "version": 81,
      "versionNonce": 1188901129,
      "isDeleted": false,
      "id": "vrdt3JfbD2Xwz4K4TWScI",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 840,
      "y": -60,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 190,
      "height": 45,
      "seed": 1499217288,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "JavaScript",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    },
    {
      "type": "arrow",
      "version": 343,
      "versionNonce": 1369065096,
      "isDeleted": false,
      "id": "Be1y2yzhV3Zd4nwCro__8",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 597.5075333823274,
      "y": 299,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 40,
      "height": 139,
      "seed": 666255096,
      "groupIds": [],
      "strokeSharpness": "round",
      "boundElementIds": [],
      "startBinding": {
        "focus": -0.41953339688473495,
        "gap": 1,
        "elementId": "UxgtvUBaIPnDWJZ9kUQH8"
      },
      "endBinding": {
        "focus": -0.11111111111111113,
        "gap": 1,
        "elementId": "2ZYh24ed28FJ0yE-S3YNY"
      },
      "points": [
        [
          0,
          0
        ],
        [
          -17.507533382327438,
          -59
        ],
        [
          22.492466617672562,
          -139
        ]
      ],
      "lastCommittedPoint": null,
      "startArrowhead": null,
      "endArrowhead": "arrow"
    },
    {
      "type": "text",
      "version": 81,
      "versionNonce": 690339976,
      "isDeleted": false,
      "id": "UxgtvUBaIPnDWJZ9kUQH8",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 580,
      "y": 300,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 94,
      "height": 45,
      "seed": 84626568,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "Be1y2yzhV3Zd4nwCro__8"
      ],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "Fetch",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    },
    {
      "type": "rectangle",
      "version": 60,
      "versionNonce": 897215480,
      "isDeleted": false,
      "id": "-Lq0agjWQ31TR_Av5Z4HW",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 520,
      "y": -60,
      "strokeColor": "#000000",
      "backgroundColor": "transparent",
      "width": 820,
      "height": 540,
      "seed": 495165432,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "jjuPzyRneMv3f65lps_6a"
      ]
    },
    {
      "type": "arrow",
      "version": 537,
      "versionNonce": 1626949112,
      "isDeleted": false,
      "id": "KaCO9-QjUenSyCuuanoTo",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 721.0588599991052,
      "y": 60.17790458606555,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 1.0588599991051524,
      "height": 79.82209541393445,
      "seed": 637565832,
      "groupIds": [],
      "strokeSharpness": "round",
      "boundElementIds": [],
      "startBinding": null,
      "endBinding": {
        "focus": 0,
        "gap": 1,
        "elementId": "bO0OVt6m7LowYpq22ePCA"
      },
      "points": [
        [
          0,
          0
        ],
        [
          -1.0588599991051524,
          39.82209541393445
        ],
        [
          -1.0588599991051524,
          79.82209541393445
        ]
      ],
      "lastCommittedPoint": null,
      "startArrowhead": null,
      "endArrowhead": "arrow"
    },
    {
      "type": "text",
      "version": 112,
      "versionNonce": 358083143,
      "isDeleted": false,
      "id": "4hEOdlcwK6AHyVhjc-MXS",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 660,
      "y": 20,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 103,
      "height": 45,
      "seed": 352116984,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "Parse",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    },
    {
      "type": "arrow",
      "version": 534,
      "versionNonce": 983577992,
      "isDeleted": false,
      "id": "74ifmqmu0vN0NK0_0FwPm",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 841.6574209245741,
      "y": 219,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 43.15128973100309,
      "height": 59.174989629909305,
      "seed": 1853344392,
      "groupIds": [],
      "strokeSharpness": "round",
      "boundElementIds": [],
      "startBinding": {
        "focus": 0.09211398277003865,
        "gap": 1,
        "elementId": "K4so-arfr0JX0NJx8vd7T"
      },
      "endBinding": {
        "focus": -0.2163077865936296,
        "gap": 1,
        "elementId": "jz0Huq9-s6pNxDw0RqHcR"
      },
      "points": [
        [
          0,
          0
        ],
        [
          -1.6574209245741258,
          1
        ],
        [
          41.493868806428964,
          -58.174989629909305
        ]
      ],
      "lastCommittedPoint": null,
      "startArrowhead": null,
      "endArrowhead": "arrow"
    },
    {
      "type": "text",
      "version": 118,
      "versionNonce": 1185705864,
      "isDeleted": false,
      "id": "K4so-arfr0JX0NJx8vd7T",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 640,
      "y": 220,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 366,
      "height": 45,
      "seed": 765854200,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "74ifmqmu0vN0NK0_0FwPm"
      ],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "Compile and Optimize",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    },
    {
      "type": "arrow",
      "version": 791,
      "versionNonce": 1724761848,
      "isDeleted": false,
      "id": "1v60NED2criGG-wo9-oQL",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 960,
      "y": 320,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 80,
      "height": 160,
      "seed": 1764571528,
      "groupIds": [],
      "strokeSharpness": "round",
      "boundElementIds": [],
      "startBinding": {
        "focus": -0.1637630662020906,
        "gap": 1,
        "elementId": "dviXudWNxiHYQMZfqHWsH"
      },
      "endBinding": {
        "focus": 0.07692307692307691,
        "gap": 1,
        "elementId": "UnmNTmwJtm6moubcGtSgB"
      },
      "points": [
        [
          0,
          0
        ],
        [
          80,
          -40
        ],
        [
          40,
          -160
        ]
      ],
      "lastCommittedPoint": null,
      "startArrowhead": null,
      "endArrowhead": "arrow"
    },
    {
      "type": "text",
      "version": 194,
      "versionNonce": 473574648,
      "isDeleted": false,
      "id": "dviXudWNxiHYQMZfqHWsH",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 720,
      "y": 320,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 484,
      "height": 45,
      "seed": 1988297464,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "1v60NED2criGG-wo9-oQL"
      ],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "Re-optimize and Deoptimize",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    },
    {
      "type": "arrow",
      "version": 708,
      "versionNonce": 185615496,
      "isDeleted": false,
      "id": "jjuPzyRneMv3f65lps_6a",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 1140,
      "y": 80,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 20,
      "height": 60,
      "seed": 1767688328,
      "groupIds": [],
      "strokeSharpness": "round",
      "boundElementIds": [],
      "startBinding": {
        "focus": -0.3021784319542362,
        "gap": 14.800415739789742,
        "elementId": "qhkjvI1VmWZdnKvU5QKZK"
      },
      "endBinding": {
        "focus": 0.15789473684210528,
        "gap": 1,
        "elementId": "of76J4WOJHnHi0L61Vst_"
      },
      "points": [
        [
          0,
          0
        ],
        [
          -20,
          20
        ],
        [
          0,
          60
        ]
      ],
      "lastCommittedPoint": null,
      "startArrowhead": null,
      "endArrowhead": "arrow"
    },
    {
      "type": "text",
      "version": 213,
      "versionNonce": 2105884296,
      "isDeleted": false,
      "id": "qhkjvI1VmWZdnKvU5QKZK",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 1080,
      "y": 20.19958426021026,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 139,
      "height": 45,
      "seed": 2115494904,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "jjuPzyRneMv3f65lps_6a"
      ],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "Execute",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    },
    {
      "type": "arrow",
      "version": 707,
      "versionNonce": 543827960,
      "isDeleted": false,
      "id": "5QQzhw_uqk_rBaW2wMriT",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 1220,
      "y": 240,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 20,
      "height": 80,
      "seed": 2059564936,
      "groupIds": [],
      "strokeSharpness": "round",
      "boundElementIds": [],
      "startBinding": {
        "focus": 0.7391304347826086,
        "gap": 2,
        "elementId": "C6fyzTg2FHAmrRYfC_THm"
      },
      "endBinding": {
        "focus": 0.3333333333333333,
        "gap": 1,
        "elementId": "SlvbjeV-9lXbcrlKib-hj"
      },
      "points": [
        [
          0,
          0
        ],
        [
          20,
          -40
        ],
        [
          20,
          -80
        ]
      ],
      "lastCommittedPoint": null,
      "startArrowhead": null,
      "endArrowhead": "arrow"
    },
    {
      "type": "text",
      "version": 227,
      "versionNonce": 2002374136,
      "isDeleted": false,
      "id": "C6fyzTg2FHAmrRYfC_THm",
      "fillStyle": "hachure",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 1,
      "opacity": 100,
      "angle": 0,
      "x": 1160,
      "y": 220,
      "strokeColor": "#000000",
      "backgroundColor": "#868e96",
      "width": 58,
      "height": 45,
      "seed": 1651025144,
      "groupIds": [],
      "strokeSharpness": "sharp",
      "boundElementIds": [
        "5QQzhw_uqk_rBaW2wMriT"
      ],
      "fontSize": 36,
      "fontFamily": 1,
      "text": "GC",
      "baseline": 32,
      "textAlign": "left",
      "verticalAlign": "top"
    }
  ],
  "appState": {
    "viewBackgroundColor": "#ffffff",
    "gridSize": 20
  }
}
packetdiag {
  colwidth = 32;
  node_height = 72;

  0-15: Source Port;
  16-31: Destination Port;
  32-63: Sequence Number;
  64-95: Acknowledgment Number;
  96-99: Data Offset;
  100-105: Reserved;
  106: URG [rotate = 270];
  107: ACK [rotate = 270];
  108: PSH [rotate = 270];
  109: RST [rotate = 270];
  110: SYN [rotate = 270];
  111: FIN [rotate = 270];
  112-127: Window;
  128-143: Checksum;
  144-159: Urgent Pointer;
  160-191: (Options and Padding);
  192-223: data [colheight = 3];
}
seqdiag {
  browser  -> webserver [label = "GET /seqdiag/svg/base64"];
  webserver  -> processor [label = "Convert text to image"];
  webserver <-- processor;
  browser <-- webserver;
}
import matplotlib.pyplot as plt
plt.plot([1,2,3, 4])
plt.show() # show figure
  • 这是一个测试2

$$

\begin{array} {cll} \hline 序号 & 人名 & 角色 \ \hline 1 & Alice & 协议中的第一个参与者 \ 2 & Bob & 协议中的第二个参与者 \ 3 & Trent & 仲裁者 \ 4 & Eve & 窃听者 \ \hline \end{array}

$$

$ 表示行内公式,如最简单的质能方程 $E=mc^2$ 展示 $$ 表示整行公式:

$$\sum_{i=1}^n a_i=0$$

$$f(x_1,x_x,\ldots,x_n) = x_1^2 + x_2^2 + \cdots + x_n^2 $$

$$\sum^{j-1}{k=0}{\widehat{\gamma}{kj} z_k}$$

$$\Gamma(z) = \int_0^\infty t^{z-1}e^{-t}dt$$

$$\Gamma(z) = \int_0^\infty t^{z-1}e^{-t}dt$$

$$\binom{n+1}{2k}$$

$$ \color{#FF0000}{红} \color{#FF7D00}{橙} \color{#FF0000}{黄} \color{#00FF00}{绿} \color{#0000FF}{蓝} \color{#00FFFF}{靛} \color{#FF00FF}{紫} $$

  • 这是一个测试2-1

    abcdef
    1:punch::notebook::e-mail::smile::movie_camera::camera:
    2:fa-car::telephone_receiver::phone::heart::alarm_clock::loop:
    3:+1::books::email::-1::bulb::hammer:
    4:rocket::book::envelope::sunny::mag_right::chart_with_upwards_trend:
    5:cloud::bar_chart::wind_chime::hibiscus::paperclip::ghost:
    6:bug::date::balloon::beers::guitar::headphones:
    7:rice::guitar::mortar_board::house::mount_fuji::office:
    8:rocket::school::cupid::notes::shit::feet:
    9:speech_balloon:

    :smile: :flushed: :sweat: :sob: :joy: :+1: :ok_hand: :point_down: :clap: :muscle: :pray: :heart: :fire: :boom: :star2: :shit: :zzz:

    姓名年龄爱好
    小明9篮球、羽毛球、乒乓球
    小刚10篮球
    足球

    名词 1 : 定义 1(左侧有一个可见的冒号和四个不可见的空格) 定义 2 定义 3

      #include <stdio.h>
      // 这是代码块(左侧有八个不可见的空格)