diff --git a/doc/_icon/event.svg b/doc/_icon/event.svg
new file mode 100644
index 0000000..e1de32f
--- /dev/null
+++ b/doc/_icon/event.svg
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="821px" height="321px" viewBox="-0.5 -0.5 821 321" content="&lt;mxfile host=&quot;Electron&quot; modified=&quot;2021-11-10T09:27:41.157Z&quot; agent=&quot;5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/14.9.6 Chrome/89.0.4389.128 Electron/12.0.16 Safari/537.36&quot; etag=&quot;9Zs6AByQIoLs92ZrDBZx&quot; version=&quot;14.9.6&quot; type=&quot;device&quot;&gt;&lt;diagram id=&quot;uuVvWI4BZRx7jkUc4KlP&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;" style="background-color: rgb(255, 255, 255);"><defs/><g><path d="M 0 23 L 0 0 L 820 0 L 820 23" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/><path d="M 0 23 L 0 320 L 820 320 L 820 23" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 0 23 L 820 23" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" font-weight="bold" pointer-events="none" text-anchor="middle" font-size="12px"><text x="409.5" y="16">event 2.0</text></g><path d="M 404 170 L 366.37 170" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 361.12 170 L 368.12 166.5 L 366.37 170 L 368.12 173.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="374" y="140" width="120" height="60" fill="#f8cecc" stroke="#b85450" transform="rotate(90,434,170)" pointer-events="none"/><path d="M 386 140 L 386 200 M 482 140 L 482 200" fill="none" stroke="#b85450" stroke-miterlimit="10" transform="rotate(90,434,170)" pointer-events="none"/><g transform="translate(-0.5 -0.5)rotate(90 434 170)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 94px; height: 1px; padding-top: 170px; margin-left: 387px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; white-space: normal; word-wrap: normal; ">回执通道</div></div></div></foreignObject><text x="434" y="174" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">回执通道</text></switch></g><rect x="90" y="230" width="720" height="80" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="100" y="240" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="280" y="240" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="280" y="240" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="460" y="240" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="640" y="240" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><ellipse cx="160" cy="270" rx="15" ry="15" fill="#fff2cc" stroke="#d6b656" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 270px; margin-left: 146px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; white-space: normal; word-wrap: normal; ">1</div></div></div></foreignObject><text x="160" y="274" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">1</text></switch></g><rect x="90" y="30" width="720" height="80" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="100" y="40" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="280" y="40" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="280" y="40" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="460" y="40" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><rect x="640" y="40" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="none"/><ellipse cx="160" cy="70" rx="15" ry="15" fill="#fff2cc" stroke="#d6b656" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 70px; margin-left: 146px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; white-space: normal; word-wrap: normal; ">2</div></div></div></foreignObject><text x="160" y="74" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">2</text></switch></g><rect x="30" y="30" width="60" height="80" fill="#f8cecc" stroke="#b85450" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 70px; margin-left: 31px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; white-space: normal; word-wrap: normal; ">2 级挂起操作</div></div></div></foreignObject><text x="60" y="74" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">2 级挂起操作</text></switch></g><rect x="30" y="230" width="60" height="80" fill="#f8cecc" stroke="#b85450" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 270px; margin-left: 31px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; white-space: normal; word-wrap: normal; ">1 级访问通道</div></div></div></foreignObject><text x="60" y="274" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">1 级访问通道</text></switch></g><path d="M 330 170 L 160 170 L 160 233.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 160 238.88 L 156.5 231.88 L 160 233.63 L 163.5 231.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 170px; margin-left: 210px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; background-color: #ffffff; white-space: nowrap; ">优先执行</div></div></div></foreignObject><text x="210" y="173" fill="#000000" font-family="Helvetica" font-size="11px" text-anchor="middle">优先执行</text></switch></g><ellipse cx="345" cy="170" rx="15" ry="15" fill="#fff2cc" stroke="#d6b656" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 28px; height: 1px; padding-top: 170px; margin-left: 331px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; white-space: normal; word-wrap: normal; ">3</div></div></div></foreignObject><text x="345" y="174" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">3</text></switch></g><path d="M 145 270 L 130 270 L 130 106.37" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 130 101.12 L 133.5 108.12 L 130 106.37 L 126.5 108.12 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 192px; margin-left: 130px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: none; background-color: #ffffff; white-space: nowrap; ">对外挂起</div></div></div></foreignObject><text x="130" y="195" fill="#000000" font-family="Helvetica" font-size="11px" text-anchor="middle">对外挂起</text></switch></g><path d="M 160 85 L 160 140 L 397.63 140" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 402.88 140 L 395.88 143.5 L 397.63 140 L 395.88 136.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; 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\ No newline at end of file
diff --git a/doc/pkg/event/事件驱动2.0文档.md b/doc/pkg/event/事件驱动2.0文档.md
new file mode 100644
index 0000000..afd53be
--- /dev/null
+++ b/doc/pkg/event/事件驱动2.0文档.md
@@ -0,0 +1,13 @@
+### 事件驱动 2.0
+
+### event 1.0 存在的问题
+事件驱动 1.0 在 相互关联访问时，会发生 死锁问题， 导致一个事件执行周期失败
+
+### event 2.0 新特性
+- 异步事件支持
+- 挂起操作
+
+
+### event 2.0 设计图
+![](../../_icon/event.svg)
+