update

Css/css-选择器-伪元素.css

@@ -0,0 +1,48 @@
+-----------------------------
+伪元素
+-----------------------------
+	::-moz-color-swatch
+	::-moz-focus-inner
+	::-moz-list-bullet
+	::-moz-list-number
+	::-moz-meter-bar
+	::-moz-progress-bar
+	::-moz-range-progress
+	::-moz-range-thumb
+	::-moz-range-track
+	::-webkit-inner-spin-button
+	::-webkit-meter-bar
+	::-webkit-meter-even-less-good-value
+	::-webkit-meter-inner-element
+	::-webkit-meter-optimum-value
+	::-webkit-meter-suboptimum-value
+	::-webkit-progress-bar
+	::-webkit-progress-inner-element
+	::-webkit-progress-value
+	::-webkit-scrollbar
+	::-webkit-search-cancel-button
+	::-webkit-search-results-button
+	::-webkit-slider-runnable-track
+	::-webkit-slider-thumb
+	::after
+	::backdrop
+	::before
+	::cue (:cue)
+	::details-content
+	::file-selector-button
+	::first-letter
+	::first-line (:first-line)
+	::grammar-error
+	::highlight()
+	::marker
+	::part()
+	::placeholder
+	::selection
+	::slotted()
+	::spelling-error
+	::target-text
+	::view-transition
+	::view-transition-group
+	::view-transition-image-pair
+	::view-transition-new
+	::view-transition-old

Css/css-选择器-伪类.css

@@ -0,0 +1,97 @@
+------------------------------
+Pseudo-classes
+------------------------------
+
+	-moz-brokenNon-standardDeprecated
+	:-moz-drag-overNon-standard
+	:-moz-first-nodeExperimentalNon-standard
+	:-moz-handler-blockedNon-standard
+	:-moz-handler-crashedNon-standard
+	:-moz-handler-disabledNon-standard
+	:-moz-last-nodeExperimentalNon-standard
+	:-moz-loadingNon-standard
+	:-moz-locale-dir(ltr)Non-standard
+	:-moz-locale-dir(rtl)Non-standard
+	:-moz-only-whitespaceNon-standard
+	:-moz-submit-invalidNon-standard
+	:-moz-suppressedNon-standard
+	:-moz-user-disabledNon-standard
+	:-moz-window-inactiveNon-standard
+	:active
+	:any-link
+	:autofill
+	:blankExperimental
+	:buffering
+	:checked
+	:currentExperimental
+	:default
+	:defined
+	:dir()
+	:disabled
+	:empty
+	:enabled
+	:first
+	:first-child
+	:first-of-type
+	:focus
+	:focus-visible
+	:focus-within
+		* 表示当元素或其任意后代元素被聚焦时，将匹配该元素。
+		* 换言之，它表示 :focus 伪类匹配到该元素自身或它的后代时，该伪类生效。（这也包括 shadow 树中的后代元素。）
+
+	:fullscreen
+	:future
+	:has-slottedExperimental
+	:has()
+		* 函数式伪类 :has() 表示一个元素，如果作为参数传递的任何相对选择器在锚定到该元素时，至少匹配一个元素。
+		* 这个伪类通过把可容错相对选择器列表作为参数，提供了一种针对引用元素选择父元素或者先前的兄弟元素的方法。
+
+	:host
+	:host-context()
+	:host()
+	:hover
+	:in-range
+	:indeterminate
+	:invalid
+	:is()
+	:lang()
+	:last-child
+	:last-of-type
+	:left
+	:link
+	:local-linkExperimental
+	:modal
+	:muted
+	:not()
+	:nth-child()
+	:nth-last-child()
+	:nth-last-of-type()
+	:nth-of-type()
+	:only-child
+	:only-of-type
+	:openExperimental
+	:optional
+	:out-of-range
+	:past
+	:paused
+	:picture-in-picture
+	:placeholder-shown
+	:playing
+	:popover-open
+	:read-only
+	:read-write
+	:required
+	:right
+	:root
+	:scope
+	:seeking
+	:stalled
+	:state()
+	:target
+	:target-withinExperimental
+	:user-invalid
+	:user-valid
+	:valid
+	:visited
+	:volume-locked
+	:where()

Css/练习/flex 列表布局.html

@@ -0,0 +1,38 @@
+
+
+<template>
+    <div class="container">
+        <div class="item" v-for="i of 66">{{ i }}</div>
+    </div>
+</template>
+
+<script setup>
+</script>
+
+
+<style scoped>
+
+.container {
+    width: 800px;
+    height: 800px;
+    background-color: skyblue;
+    display: flex;
+    align-content: start;
+    flex-wrap: wrap;
+
+}
+.item {
+    /* 每行多少个 */
+    --n: 12;
+    /* 每个多宽 */
+    --w: 40px;
+    /* 计算出左右 margin */
+    --gap: calc((100% - var(--w) * var(--n)) / var(--n) / 2);
+
+    margin: 10px var(--gap);
+
+    width: var(--w);
+    height: 40px;
+    background-color: gray;
+}
+</style>

Go/lib/runtime/debug.go

@@ -48,4 +48,6 @@ func
 	func SetPanicOnFault(enabled bool) bool
 	func SetTraceback(level string)
 	func Stack() []byte
+		* Stack 返回调用它的 goroutine 的格式化堆栈跟踪。它会调用 runtime.Stack，并使用足够大的缓冲区来捕获整个跟踪。
+
 	func WriteHeapDump(fd uintptr)