博客园实现代码片高亮及行号显示

由于博客园默认代码片实在太丑，希望实现sublime风格的代码显示，通过添加css代码实现，代码如下：

/*Markdown*/
/*
Monokai Sublime style. Derived from Monokai by noformnocontent http://nn.mit-license.org/
*/

/*.cnblogs-markdown pre {
  overflow: auto;
}

.cnblogs-markdown table {
  display: block;
  width: 100%;
  overflow: auto;
  word-break: normal;
}

.cnblogs-markdown pre {
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: #f7f7f7;
  border-radius: 3px;
}

.cnblogs-markdown pre code {
  display: inline;
  max-width: initial;
  padding: 0;
  margin: 0;
  overflow: initial;
  line-height: inherit;
  word-wrap: normal;
  background-color: transparent;
  border: 0;
}*/

/*以下代码可增加横向滑动条，防止行号错位*/
#cnblogs_post_body {
  margin: 20px 0;
}

.cnblogs-markdown {
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  color: #333;
  overflow: hidden;
  font-family: "Helvetica Neue", Helvetica, "Segoe UI", Arial, freesans, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  word-wrap: break-word;
}

.cnblogs-markdown a {
  background: transparent;
}

.cnblogs-markdown a:active,
.cnblogs-markdown a:hover {
  outline: 0;
}

.cnblogs-markdown strong {
  font-weight: bold;
}

.cnblogs-markdown h1 {
  font-size: 2em;
  margin: 0.67em 0;
}

.cnblogs-markdown img {
  border: 0;
}

.cnblogs-markdown hr {
  box-sizing: content-box;
  height: 0;
}

.cnblogs-markdown pre {
  overflow: auto;
}

.cnblogs-markdown code,
.cnblogs-markdown kbd,
.cnblogs-markdown pre {
  font-family: monospace, monospace;
  font-size: 1em;
}

.cnblogs-markdown input {
  color: inherit;
  font: inherit;
  margin: 0;
}

.cnblogs-markdown html input[disabled] {
  cursor: default;
}

.cnblogs-markdown input {
  line-height: normal;
}

.cnblogs-markdown input[type="checkbox"] {
  box-sizing: border-box;
  padding: 0;
}

.cnblogs-markdown table {
  border-collapse: collapse;
  border-spacing: 0;
}

.cnblogs-markdown td,
.cnblogs-markdown th {
  padding: 0;
}

.cnblogs-markdown * {
  box-sizing: border-box;
}

.cnblogs-markdown input {
  font: 13px/1.4 Helvetica, arial, nimbussansl, liberationsans, freesans, clean, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
}

.cnblogs-markdown a {
  color: #4183c4;
  text-decoration: none;
}

.cnblogs-markdown a:hover,
.cnblogs-markdown a:active {
  text-decoration: underline;
}

.cnblogs-markdown hr {
  height: 0;
  margin: 15px 0;
  overflow: hidden;
  background: transparent;
  border: 0;
  border-bottom: 1px solid #ddd;
}

.cnblogs-markdown hr:before {
  display: table;
  content: "";
}

.cnblogs-markdown hr:after {
  display: table;
  clear: both;
  content: "";
}

.cnblogs-markdown h1,
.cnblogs-markdown h2,
.cnblogs-markdown h3,
.cnblogs-markdown h4,
.cnblogs-markdown h5,
.cnblogs-markdown h6 {
  margin-top: 15px;
  margin-bottom: 10px;
  line-height: 1.1;
}

.cnblogs-markdown blockquote {
  margin: 0;
}

.cnblogs-markdown ul,
.cnblogs-markdown ol {
  padding: 0;
  margin-top: 0;
  margin-bottom: 0;
}

.cnblogs-markdown ol ol,
.cnblogs-markdown ul ol {
  list-style-type: lower-roman;
}

.cnblogs-markdown ul ul ol,
.cnblogs-markdown ul ol ol,
.cnblogs-markdown ol ul ol,
.cnblogs-markdown ol ol ol {
  list-style-type: lower-alpha;
}

.cnblogs-markdown dd {
  margin-left: 0;
}

.cnblogs-markdown code {
  font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
  font-size: 12px;
}

.cnblogs-markdown pre {
  margin-top: 0;
  margin-bottom: 0;
  font: 12px Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

.cnblogs-markdown .octicon {
  font: normal normal normal 16px/1 octicons-anchor;
  display: inline-block;
  text-decoration: none;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.cnblogs-markdown .octicon-link:before {
  content: '\f05c';
}

.cnblogs-markdown>*:first-child {
  margin-top: 0 !important;
}

.cnblogs-markdown>*:last-child {
  margin-bottom: 0 !important;
}

.cnblogs-markdown a:not(:link):not(:visited) {
  color: inherit;
  text-decoration: none;
}

.cnblogs-markdown .anchor {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  padding-right: 6px;
  padding-left: 30px;
  margin-left: -30px;
}

.cnblogs-markdown .anchor:focus {
  outline: none;
}

.cnblogs-markdown h1,
.cnblogs-markdown h2,
.cnblogs-markdown h3,
.cnblogs-markdown h4,
.cnblogs-markdown h5,
.cnblogs-markdown h6 {
  position: relative;
  margin-top: 1em;
  margin-bottom: 16px;
  font-weight: bold;
  line-height: 1.4;
}

.cnblogs-markdown h1 .octicon-link,
.cnblogs-markdown h2 .octicon-link,
.cnblogs-markdown h3 .octicon-link,
.cnblogs-markdown h4 .octicon-link,
.cnblogs-markdown h5 .octicon-link,
.cnblogs-markdown h6 .octicon-link {
  display: none;
  color: #000;
  vertical-align: middle;
}

.cnblogs-markdown h1:hover .anchor,
.cnblogs-markdown h2:hover .anchor,
.cnblogs-markdown h3:hover .anchor,
.cnblogs-markdown h4:hover .anchor,
.cnblogs-markdown h5:hover .anchor,
.cnblogs-markdown h6:hover .anchor {
  padding-left: 8px;
  margin-left: -30px;
  text-decoration: none;
}

.cnblogs-markdown h1:hover .anchor .octicon-link,
.cnblogs-markdown h2:hover .anchor .octicon-link,
.cnblogs-markdown h3:hover .anchor .octicon-link,
.cnblogs-markdown h4:hover .anchor .octicon-link,
.cnblogs-markdown h5:hover .anchor .octicon-link,
.cnblogs-markdown h6:hover .anchor .octicon-link {
  display: inline-block;
}

.cnblogs-markdown h1 {
  padding-bottom: 0.3em;
  font-size: 2.25em !important;
  line-height: 1.2;
  border-bottom: 1px solid #eee;
}

.cnblogs-markdown h1 .anchor {
  line-height: 1;
}

.cnblogs-markdown h2 {
  padding-bottom: 0.3em;
  font-size: 1.75em !important;
  line-height: 1.225;
  border-bottom: 1px solid #eee;
}

.cnblogs-markdown h2 .anchor {
  line-height: 1;
}

.cnblogs-markdown h3 {
  font-size: 1.5em!important;
  line-height: 1.43;
}

.cnblogs-markdown h3 .anchor {
  line-height: 1.2;
}

.cnblogs-markdown h4 {
  font-size: 1.25em !important;
}

.cnblogs-markdown h4 .anchor {
  line-height: 1.2;
}

.cnblogs-markdown h5 {
  font-size: 1em !important;
}

.cnblogs-markdown h5 .anchor {
  line-height: 1.1;
}

.cnblogs-markdown h6 {
  font-size: 1em !important;
  color: #777;
}

.cnblogs-markdown h6 .anchor {
  line-height: 1.1;
}

.cnblogs-markdown p,
.cnblogs-markdown blockquote,
.cnblogs-markdown ul,
.cnblogs-markdown ol,
.cnblogs-markdown dl,
.cnblogs-markdown table,
.cnblogs-markdown pre {
  margin-top: 0;
  margin-bottom: 16px;
}

.cnblogs-markdown hr {
  height: 4px;
  padding: 0;
  margin: 16px 0;
  background-color: #e7e7e7;
  border: 0 none;
}

.cnblogs-markdown ul,
.cnblogs-markdown ol {
  padding-left: 2em;
  font-size: 14px;
}

.cnblogs-markdown ul ul,
.cnblogs-markdown ul ol,
.cnblogs-markdown ol ol,
.cnblogs-markdown ol ul {
  margin-top: 0;
  margin-bottom: 0;
}

.cnblogs-markdown li>p {
  margin-top: 16px;
}

.cnblogs-markdown dl {
  padding: 0;
}

.cnblogs-markdown dl dt {
  padding: 0;
  margin-top: 16px;
  font-size: 1em;
  font-style: italic;
  font-weight: bold;
}

.cnblogs-markdown dl dd {
  padding: 0 16px;
  margin-bottom: 16px;
}

.cnblogs-markdown blockquote {
  color: #333;
  padding: 10px 15px;
  border: none;
  border-left: 10px solid #D6DBDF;
}

.cnblogs-markdown blockquote>:first-child {
  margin-top: 0;
}

.cnblogs-markdown blockquote>:last-child {
  margin-bottom: 0;
}

.cnblogs-markdown table {
  display: block;
  width: 100%;
  overflow: auto;
  word-break: normal;
  word-break: keep-all;
}

.cnblogs-markdown table th {
  font-weight: bold;
}

.cnblogs-markdown table th,
.cnblogs-markdown table td {
  padding: 6px 13px;
  border: 1px solid #ddd;
}

.cnblogs-markdown table tr {
  background-color: #fff;
  border-top: 1px solid #ccc;
}

.cnblogs-markdown table tr:nth-child(2n) {
  background-color: #f8f8f8;
}

.cnblogs-markdown img {
  max-width: 100%;
  box-sizing: border-box;
}

.cnblogs-markdown code {
  padding: 0;
  padding-top: 0.2em;
  padding-bottom: 0.2em;
  margin: 0;
  font-size: 85%;
  background-color: rgba(0,0,0,0.04);
  border-radius: 3px;
  border: none !important;
  display: inline-block;
}

.cnblogs-markdown code:before,
.cnblogs-markdown code:after {
  letter-spacing: -0.2em;
  content: "\00a0";
}

/*only for syntaxhighlighter */
/*--start--*/
.cnblogs-markdown .syntaxhighlighter table td.code {
  width:95% !important;
}

.cnblogs-markdown .syntaxhighlighter code {
  font-family: "Consolas","Bitstream Vera Sans Mono","Courier New",Courier,monospace!important;
  padding: 0 !important;
  border-radius: 0 !important;
  background-color: transparent !important;
}

.cnblogs-markdown .syntaxhighlighter code:before,
.cnblogs-markdown .syntaxhighlighter code:before {
  letter-spacing: -0.5em;
}
/*--end--*/

.cnblogs-markdown pre>code {
  padding: 0;
  margin: 0;
  font-size: 100%;
  word-break: normal;
  white-space: pre;
  background: transparent;
  border: 0;
}

.cnblogs-markdown .highlight {
  margin-bottom: 16px;
}

.cnblogs-markdown .highlight pre,
.cnblogs-markdown pre {
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: #f7f7f7;
  border-radius: 3px;
}

.cnblogs-markdown .highlight pre {
  margin-bottom: 0;
  word-break: normal;
}

.cnblogs-markdown pre {
  word-wrap: normal;
}

.cnblogs-markdown pre code {
  display: inline;
  max-width: initial;
  padding: 0;
  margin: 0;
  overflow: initial;
  line-height: inherit;
  word-wrap: normal;
  background-color: transparent;
  border: 0;
}

.cnblogs-markdown pre code:before,
.cnblogs-markdown pre code:after {
  content: normal;
}

.cnblogs-markdown kbd {
  display: inline-block;
  padding: 3px 5px;
  font-size: 11px;
  line-height: 10px;
  color: #555;
  vertical-align: middle;
  background-color: #fcfcfc;
  border: solid 1px #ccc;
  border-bottom-color: #bbb;
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 #bbb;
}

.cnblogs-markdown .pl-c {
  color: #969896;
}

.cnblogs-markdown .pl-c1,
.cnblogs-markdown .pl-mdh,
.cnblogs-markdown .pl-mm,
.cnblogs-markdown .pl-mp,
.cnblogs-markdown .pl-mr,
.cnblogs-markdown .pl-s1 .pl-v,
.cnblogs-markdown .pl-s3,
.cnblogs-markdown .pl-sc,
.cnblogs-markdown .pl-sv {
  color: #0086b3;
}

.cnblogs-markdown .pl-e,
.cnblogs-markdown .pl-en {
  color: #795da3;
}

.cnblogs-markdown .pl-s1 .pl-s2,
.cnblogs-markdown .pl-smi,
.cnblogs-markdown .pl-smp,
.cnblogs-markdown .pl-stj,
.cnblogs-markdown .pl-vo,
.cnblogs-markdown .pl-vpf {
  color: #333;
}

.cnblogs-markdown .pl-ent {
  color: #63a35c;
}

.cnblogs-markdown .pl-k,
.cnblogs-markdown .pl-s,
.cnblogs-markdown .pl-st {
  color: #a71d5d;
}

.cnblogs-markdown .pl-pds,
.cnblogs-markdown .pl-s1,
.cnblogs-markdown .pl-s1 .pl-pse .pl-s2,
.cnblogs-markdown .pl-sr,
.cnblogs-markdown .pl-sr .pl-cce,
.cnblogs-markdown .pl-sr .pl-sra,
.cnblogs-markdown .pl-sr .pl-sre,
.cnblogs-markdown .pl-src {
  color: #183691;
}

.cnblogs-markdown .pl-v {
  color: #ed6a43;
}

.cnblogs-markdown .pl-id {
  color: #b52a1d;
}

.cnblogs-markdown .pl-ii {
  background-color: #b52a1d;
  color: #f8f8f8;
}

.cnblogs-markdown .pl-sr .pl-cce {
  color: #63a35c;
  font-weight: bold;
}

.cnblogs-markdown .pl-ml {
  color: #693a17;
}

.cnblogs-markdown .pl-mh,
.cnblogs-markdown .pl-mh .pl-en,
.cnblogs-markdown .pl-ms {
  color: #1d3e81;
  font-weight: bold;
}

.cnblogs-markdown .pl-mq {
  color: #008080;
}

.cnblogs-markdown .pl-mi {
  color: #333;
  font-style: italic;
}

.cnblogs-markdown .pl-mb {
  color: #333;
  font-weight: bold;
}

.cnblogs-markdown .pl-md,
.cnblogs-markdown .pl-mdhf {
  background-color: #ffecec;
  color: #bd2c00;
}
.cnblogs-markdown .pl-mdht,
.cnblogs-markdown .pl-mi1 {
  background-color: #eaffea;
  color: #55a532;
}

.cnblogs-markdown .pl-mdr {
  color: #795da3;
  font-weight: bold;
}

.cnblogs-markdown .pl-mo {
  color: #1d3e81;
}

.cnblogs-markdown kbd {
  display: inline-block;
  padding: 3px 5px;
  font: 11px Consolas, "Liberation Mono", Menlo, Courier, monospace;
  line-height: 10px;
  color: #555;
  vertical-align: middle;
  background-color: #fcfcfc;
  border: solid 1px #ccc;
  border-bottom-color: #bbb;
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 #bbb;
  padding-top: 20px;
}

.cnblogs-markdown .task-list-item {
  list-style-type: none;
}

.cnblogs-markdown .task-list-item+.task-list-item {
  margin-top: 3px;
}

.cnblogs-markdown .task-list-item input {
  margin: 0 0.35em 0.25em -1.6em;
  vertical-align: middle;
}

.cnblogs-markdown :checked+.radio-label {
  z-index: 1;
  position: relative;
  border-color: #4183c4;
}


.cnblogs-markdown .hljs {
   border: none !important;
}
#cnblogs_post_body th, #cnblogs_post_body td, .cnblogs-post-body th, .cnblogs-post-body td {
   border: none !important;
   padding: 0;
}

.postCon {
   font-size: 14px;
}

.cnblogs-markdown .hljs, .cnblogs-post-body .hljs {
   line-height: 1.5!important;
   padding: 5px!important;
}

#cnblogs_post_body table, .cnblogs-post-body table {
   border: none !important;
   border-collapse: collapse;
   word-break: break-word;
}



/*搬家之后代码(即markdown)的格式*/

.cnblogs-markdown .hljs {
  display: block !important;
  overflow-x: auto !important;
  padding: 0.5em !important;
  background: #23241f !important;
  color: white !important;
  font-family: Consolas !important;
  font-size: 16px !important;
  letter-spacing: 1px !important;
}

.cnblogs-markdown .hljs,
.cnblogs-markdown .hljs-tag,
.cnblogs-markdown .hljs-subst {
  color: #f8f8f2 !important;
}

.cnblogs-markdown .hljs-strong,
.cnblogs-markdown .hljs-emphasis {
  color: #a8a8a2 !important;
}

.cnblogs-markdown .hljs-bullet,
.cnblogs-markdown .hljs-quote,
.cnblogs-markdown .hljs-number,
.cnblogs-markdown .hljs-regexp,
.cnblogs-markdown .hljs-literal,
.cnblogs-markdown .hljs-link {
  color: #ae81ff !important;
}

.cnblogs-markdown .hljs-code,
.cnblogs-markdown .hljs-title,
.cnblogs-markdown .hljs-section,
.cnblogs-markdown .hljs-selector-class {
  color: #a6e22e !important;
}

.cnblogs-markdown .hljs-strong {
  font-weight: bold !important;
}

.cnblogs-markdown .hljs-emphasis {
  font-style: italic !important;
}

.cnblogs-markdown .hljs-keyword,
.cnblogs-markdown .hljs-selector-tag,
.cnblogs-markdown .hljs-name,
.cnblogs-markdown .hljs-attr {
  color: #f92672 !important;
}
.cnblogs-markdown .hljs-keyword,.cnblogs-markdown .hljs-built_in{
  color: #f92672 !important; //for while 玫红色
}

.cnblogs-markdown .hljs-symbol,
.cnblogs-markdown .hljs-attribute {
  color: #66d9ef !important;
}

.cnblogs-markdown .hljs-params,
.cnblogs-markdown .hljs-class .cnblogs-markdown .hljs-title {
  color: #f8f8f2 !important;
}

.cnblogs-markdown .hljs-string,
.cnblogs-markdown .hljs-type,
.cnblogs-markdown .hljs-builtin-name,
.cnblogs-markdown .hljs-selector-id,
.cnblogs-markdown .hljs-selector-attr,
.cnblogs-markdown .hljs-selector-pseudo,
.cnblogs-markdown .hljs-addition,
.cnblogs-markdown .hljs-variable,
.cnblogs-markdown .hljs-template-variable {
  color: #e6db74 !important;
}

.cnblogs-markdown .hljs-comment,
.cnblogs-markdown .hljs-deletion{
  color: #75715e !important;
}

.cnblogs-markdown .hljs-meta{
  color: #f92672 !important;
}

/*
搬家之前代码(即非markdown)的格式
*/

.hljs {
  display: block !important;
  overflow-x: auto !important;
  padding: 0.5em !important;
  background: #23241f !important;
  color: white !important;
  font-family: Consolas !important;
  font-size: 16px !important;
  letter-spacing: 1px !important;

  word-break: break-word;
  word-wrap: normal;
}

.hljs-tag,
.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-strong,
.hljs-name {
  color: #f92672;
}

.hljs-code {
  color: #66d9ef;
}

.hljs-class .hljs-title {
  color: white;
}

.hljs-attribute,
.hljs-symbol,
.hljs-regexp,
.hljs-link {
  color: #bf79db;
}

.hljs-string,
.hljs-bullet,
.hljs-subst,
.hljs-title,
.hljs-section,
.hljs-emphasis,
.hljs-type,
.hljs-built_in,
.hljs-builtin-name,
.hljs-selector-attr,
.hljs-selector-pseudo,
.hljs-addition,
.hljs-variable,
.hljs-template-tag,
.hljs-template-variable {
  color: #a6e22e;
}

.hljs-comment,
.hljs-quote,
.hljs-deletion,
.hljs-meta {
  color: #75715e;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-doctag,
.hljs-title,
.hljs-section,
.hljs-type,
.hljs-selector-id {
  font-weight: bold;
}

其中!important表示其优先级在同组中提升为最高，避免其余博客园自有代码发生冲突而无效，至于字体、大小、字符间距以及行间距都是可以调整的，查阅css语法即可。
添加行号通过调用highlightjs-line-numbers.js实现，注意只能使用1.1.0版本或更早的版本，1.1.0之后的版本把每行代码都用横线分割了，整个就像一个表格太丑了，如下所示：

可在”页脚 HTML 代码”栏添加如下代码：

<script src="//cdn.jsdelivr.net/npm/highlightjs-line-numbers.js@1.1.0/dist/highlightjs-line-numbers.min.js"></script>
    
<script>
$(function () {
    /* markdown模式下为代码加入行号, 调用插件highlightjs-line-numbers.js */
    hljs.initHighlightingOnLoad();  
    hljs.initLineNumbersOnLoad();
});
</script>

但是仅添加highlightjs-line-numbers.js是不够的，因为若某行代码过长则会造成行号显示错位，如下图所示：

通过参考博客园markdown显示行号探索心路历程，发现可以通过设置css的overflow-x参数使得代码过长时自动添加滚动条是的代码永远保持在同一行从而避免行号错位，但具体操作尚未完全搞清楚，只好把上述博主的代码全部copy过来，将其中.hljs中关于字体字号的设置删去以避免与我之前的设置产生冲突，发现搬家之后(即markdown)的代码行号错位的问题解决了，但是搬家之前(非markdown)的代码行号的错位问题仍未解决。

博客园中实现代码高亮
优化博客园Markdown样式（代码行号、版权信息、章节目录等）
博客园markdown显示行号探索心路历程
改进博客园Markdown显示功能(加代码行号、显示代码所用编程语言)