JAVA高级面试进阶训练营视频教程

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1.问题描述

Bootstrap4移除了收费图标的相关内容，如果想使用图标样式需要使用https://octicons.github.com/ 和http://fontawesome.io/提供的内容。当然还可以自行引入相关样式到bootstrap.css中。

2.自行添加样式方法

• 在bootstrap/dist/css/bootstrap.css文件中添加代码样式如下

• @font-face {
    font-family: 'Glyphicons Halflings';
  
    src: url('../fonts/glyphicons-halflings-regular.eot');
    src: url('../fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), url('../fonts/glyphicons-halflings-regular.woff2') format('woff2'), url('../fonts/glyphicons-halflings-regular.woff') format('woff'), url('../fonts/glyphicons-halflings-regular.ttf') format('truetype'), url('../fonts/glyphicons-halflings-regular.svg#glyphicons_halflingsregular') format('svg');
  }
  .glyphicon {
    position: relative;
    top: 1px;
    display: inline-block;
    font-family: 'Glyphicons Halflings';
    font-style: normal;
    font-weight: normal;
    line-height: 1;
  
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  .glyphicon-asterisk:before {
    content: "\002a";
  }
  .glyphicon-plus:before {
    content: "\002b";
  }
  .glyphicon-euro:before,
  .glyphicon-eur:before {
    content: "\20ac";
  }
  .glyphicon-minus:before {
    content: "\2212";
  }
  .glyphicon-cloud:before {
    content: "\2601";
  }
  .glyphicon-envelope:before {
    content: "\2709";
  }
  .glyphicon-pencil:before {
    content: "\270f";
  }
  .glyphicon-glass:before {
    content: "\e001";
  }
  .glyphicon-music:before {
    content: "\e002";
  }
  .glyphicon-search:before {
    content: "\e003";
  }
  .glyphicon-heart:before {
    content: "\e005";
  }
  .glyphicon-star:before {
    content: "\e006";
  }
  .glyphicon-star-empty:before {
    content: "\e007";
  }
  .glyphicon-user:before {
    content: "\e008";
  }
  .glyphicon-film:before {
    content: "\e009";
  }
  .glyphicon-th-large:before {
    content: "\e010";
  }
  .glyphicon-th:before {
    content: "\e011";
  }
  .glyphicon-th-list:before {
    content: "\e012";
  }
  .glyphicon-ok:before {
    content: "\e013";
  }
  .glyphicon-remove:before {
    content: "\e014";
  }
  .glyphicon-zoom-in:before {
    content: "\e015";
  }
  .glyphicon-zoom-out:before {
    content: "\e016";
  }
  .glyphicon-off:before {
    content: "\e017";
  }
  .glyphicon-signal:before {
    content: "\e018";
  }
  .glyphicon-cog:before {
    content: "\e019";
  }
  .glyphicon-trash:before {
    content: "\e020";
  }
  .glyphicon-home:before {
    content: "\e021";
  }
  .glyphicon-file:before {
    content: "\e022";
  }
  .glyphicon-time:before {
    content: "\e023";
  }
  .glyphicon-road:before {
    content: "\e024";
  }
  .glyphicon-download-alt:before {
    content: "\e025";
  }
  .glyphicon-download:before {
    content: "\e026";
  }
  .glyphicon-upload:before {
    content: "\e027";
  }
  .glyphicon-inbox:before {
    content: "\e028";
  }
  .glyphicon-play-circle:before {
    content: "\e029";
  }
  .glyphicon-repeat:before {
    content: "\e030";
  }
  .glyphicon-refresh:before {
    content: "\e031";
  }
  .glyphicon-list-alt:before {
    content: "\e032";
  }
  .glyphicon-lock:before {
    content: "\e033";
  }
  .glyphicon-flag:before {
    content: "\e034";
  }
  .glyphicon-headphones:before {
    content: "\e035";
  }
  .glyphicon-volume-off:before {
    content: "\e036";
  }
  .glyphicon-volume-down:before {
    content: "\e037";
  }
  .glyphicon-volume-up:before {
    content: "\e038";
  }
  .glyphicon-qrcode:before {
    content: "\e039";
  }
  .glyphicon-barcode:before {
    content: "\e040";
  }
  .glyphicon-tag:before {
    content: "\e041";
  }
  .glyphicon-tags:before {
    content: "\e042";
  }
  .glyphicon-book:before {
    content: "\e043";
  }
  .glyphicon-bookmark:before {
    content: "\e044";
  }
  .glyphicon-print:before {
    content: "\e045";
  }
  .glyphicon-camera:before {
    content: "\e046";
  }
  .glyphicon-font:before {
    content: "\e047";
  }
  .glyphicon-bold:before {
    content: "\e048";
  }
  .glyphicon-italic:before {
    content: "\e049";
  }
  .glyphicon-text-height:before {
    content: "\e050";
  }
  .glyphicon-text-width:before {
    content: "\e051";
  }
  .glyphicon-align-left:before {
    content: "\e052";
  }
  .glyphicon-align-center:before {
    content: "\e053";
  }
  .glyphicon-align-right:before {
    content: "\e054";
  }
  .glyphicon-align-justify:before {
    content: "\e055";
  }
  .glyphicon-list:before {
    content: "\e056";
  }
  .glyphicon-indent-left:before {
    content: "\e057";
  }
  .glyphicon-indent-right:before {
    content: "\e058";
  }
  .glyphicon-facetime-video:before {
    content: "\e059";
  }
  .glyphicon-picture:before {
    content: "\e060";
  }
  .glyphicon-map-marker:before {
    content: "\e062";
  }
  .glyphicon-adjust:before {
    content: "\e063";
  }
  .glyphicon-tint:before {
    content: "\e064";
  }
  .glyphicon-edit:before {
    content: "\e065";
  }
  .glyphicon-share:before {
    content: "\e066";
  }
  .glyphicon-check:before {
    content: "\e067";
  }
  .glyphicon-move:before {
    content: "\e068";
  }
  .glyphicon-step-backward:before {
    content: "\e069";
  }
  .glyphicon-fast-backward:before {
    content: "\e070";
  }
  .glyphicon-backward:before {
    content: "\e071";
  }
  .glyphicon-play:before {
    content: "\e072";
  }
  .glyphicon-pause:before {
    content: "\e073";
  }
  .glyphicon-stop:before {
    content: "\e074";
  }
  .glyphicon-forward:before {
    content: "\e075";
  }
  .glyphicon-fast-forward:before {
    content: "\e076";
  }
  .glyphicon-step-forward:before {
    content: "\e077";
  }
  .glyphicon-eject:before {
    content: "\e078";
  }
  .glyphicon-chevron-left:before {
    content: "\e079";
  }
  .glyphicon-chevron-right:before {
    content: "\e080";
  }
  .glyphicon-plus-sign:before {
    content: "\e081";
  }
  .glyphicon-minus-sign:before {
    content: "\e082";
  }
  .glyphicon-remove-sign:before {
    content: "\e083";
  }
  .glyphicon-ok-sign:before {
    content: "\e084";
  }
  .glyphicon-question-sign:before {
    content: "\e085";
  }
  .glyphicon-info-sign:before {
    content: "\e086";
  }
  .glyphicon-screenshot:before {
    content: "\e087";
  }
  .glyphicon-remove-circle:before {
    content: "\e088";
  }
  .glyphicon-ok-circle:before {
    content: "\e089";
  }
  .glyphicon-ban-circle:before {
    content: "\e090";
  }
  .glyphicon-arrow-left:before {
    content: "\e091";
  }
  .glyphicon-arrow-right:before {
    content: "\e092";
  }
  .glyphicon-arrow-up:before {
    content: "\e093";
  }
  .glyphicon-arrow-down:before {
    content: "\e094";
  }
  .glyphicon-share-alt:before {
    content: "\e095";
  }
  .glyphicon-resize-full:before {
    content: "\e096";
  }
  .glyphicon-resize-small:before {
    content: "\e097";
  }
  .glyphicon-exclamation-sign:before {
    content: "\e101";
  }
  .glyphicon-gift:before {
    content: "\e102";
  }
  .glyphicon-leaf:before {
    content: "\e103";
  }
  .glyphicon-fire:before {
    content: "\e104";
  }
  .glyphicon-eye-open:before {
    content: "\e105";
  }
  .glyphicon-eye-close:before {
    content: "\e106";
  }
  .glyphicon-warning-sign:before {
    content: "\e107";
  }
  .glyphicon-plane:before {
    content: "\e108";
  }
  .glyphicon-calendar:before {
    content: "\e109";
  }
  .glyphicon-random:before {
    content: "\e110";
  }
  .glyphicon-comment:before {
    content: "\e111";
  }
  .glyphicon-magnet:before {
    content: "\e112";
  }
  .glyphicon-chevron-up:before {
    content: "\e113";
  }
  .glyphicon-chevron-down:before {
    content: "\e114";
  }
  .glyphicon-retweet:before {
    content: "\e115";
  }
  .glyphicon-shopping-cart:before {
    content: "\e116";
  }
  .glyphicon-folder-close:before {
    content: "\e117";
  }
  .glyphicon-folder-open:before {
    content: "\e118";
  }
  .glyphicon-resize-vertical:before {
    content: "\e119";
  }
  .glyphicon-resize-horizontal:before {
    content: "\e120";
  }
  .glyphicon-hdd:before {
    content: "\e121";
  }
  .glyphicon-bullhorn:before {
    content: "\e122";
  }
  .glyphicon-bell:before {
    content: "\e123";
  }
  .glyphicon-certificate:before {
    content: "\e124";
  }
  .glyphicon-thumbs-up:before {
    content: "\e125";
  }
  .glyphicon-thumbs-down:before {
    content: "\e126";
  }
  .glyphicon-hand-right:before {
    content: "\e127";
  }
  .glyphicon-hand-left:before {
    content: "\e128";
  }
  .glyphicon-hand-up:before {
    content: "\e129";
  }
  .glyphicon-hand-down:before {
    content: "\e130";
  }
  .glyphicon-circle-arrow-right:before {
    content: "\e131";
  }
  .glyphicon-circle-arrow-left:before {
    content: "\e132";
  }
  .glyphicon-circle-arrow-up:before {
    content: "\e133";
  }
  .glyphicon-circle-arrow-down:before {
    content: "\e134";
  }
  .glyphicon-globe:before {
    content: "\e135";
  }
  .glyphicon-wrench:before {
    content: "\e136";
  }
  .glyphicon-tasks:before {
    content: "\e137";
  }
  .glyphicon-filter:before {
    content: "\e138";
  }
  .glyphicon-briefcase:before {
    content: "\e139";
  }
  .glyphicon-fullscreen:before {
    content: "\e140";
  }
  .glyphicon-dashboard:before {
    content: "\e141";
  }
  .glyphicon-paperclip:before {
    content: "\e142";
  }
  .glyphicon-heart-empty:before {
    content: "\e143";
  }
  .glyphicon-link:before {
    content: "\e144";
  }
  .glyphicon-phone:before {
    content: "\e145";
  }
  .glyphicon-pushpin:before {
    content: "\e146";
  }
  .glyphicon-usd:before {
    content: "\e148";
  }
  .glyphicon-gbp:before {
    content: "\e149";
  }
  .glyphicon-sort:before {
    content: "\e150";
  }
  .glyphicon-sort-by-alphabet:before {
    content: "\e151";
  }
  .glyphicon-sort-by-alphabet-alt:before {
    content: "\e152";
  }
  .glyphicon-sort-by-order:before {
    content: "\e153";
  }
  .glyphicon-sort-by-order-alt:before {
    content: "\e154";
  }
  .glyphicon-sort-by-attributes:before {
    content: "\e155";
  }
  .glyphicon-sort-by-attributes-alt:before {
    content: "\e156";
  }
  .glyphicon-unchecked:before {
    content: "\e157";
  }
  .glyphicon-expand:before {
    content: "\e158";
  }
  .glyphicon-collapse-down:before {
    content: "\e159";
  }
  .glyphicon-collapse-up:before {
    content: "\e160";
  }
  .glyphicon-log-in:before {
    content: "\e161";
  }
  .glyphicon-flash:before {
    content: "\e162";
  }
  .glyphicon-log-out:before {
    content: "\e163";
  }
  .glyphicon-new-window:before {
    content: "\e164";
  }
  .glyphicon-record:before {
    content: "\e165";
  }
  .glyphicon-save:before {
    content: "\e166";
  }
  .glyphicon-open:before {
    content: "\e167";
  }
  .glyphicon-saved:before {
    content: "\e168";
  }
  .glyphicon-import:before {
    content: "\e169";
  }
  .glyphicon-export:before {
    content: "\e170";
  }
  .glyphicon-send:before {
    content: "\e171";
  }
  .glyphicon-floppy-disk:before {
    content: "\e172";
  }
  .glyphicon-floppy-saved:before {
    content: "\e173";
  }
  .glyphicon-floppy-remove:before {
    content: "\e174";
  }
  .glyphicon-floppy-save:before {
    content: "\e175";
  }
  .glyphicon-floppy-open:before {
    content: "\e176";
  }
  .glyphicon-credit-card:before {
    content: "\e177";
  }
  .glyphicon-transfer:before {
    content: "\e178";
  }
  .glyphicon-cutlery:before {
    content: "\e179";
  }
  .glyphicon-header:before {
    content: "\e180";
  }
  .glyphicon-compressed:before {
    content: "\e181";
  }
  .glyphicon-earphone:before {
    content: "\e182";
  }
  .glyphicon-phone-alt:before {
    content: "\e183";
  }
  .glyphicon-tower:before {
    content: "\e184";
  }
  .glyphicon-stats:before {
    content: "\e185";
  }
  .glyphicon-sd-video:before {
    content: "\e186";
  }
  .glyphicon-hd-video:before {
    content: "\e187";
  }
  .glyphicon-subtitles:before {
    content: "\e188";
  }
  .glyphicon-sound-stereo:before {
    content: "\e189";
  }
  .glyphicon-sound-dolby:before {
    content: "\e190";
  }
  .glyphicon-sound-5-1:before {
    content: "\e191";
  }
  .glyphicon-sound-6-1:before {
    content: "\e192";
  }
  .glyphicon-sound-7-1:before {
    content: "\e193";
  }
  .glyphicon-copyright-mark:before {
    content: "\e194";
  }
  .glyphicon-registration-mark:before {
    content: "\e195";
  }
  .glyphicon-cloud-download:before {
    content: "\e197";
  }
  .glyphicon-cloud-upload:before {
    content: "\e198";
  }
  .glyphicon-tree-conifer:before {
    content: "\e199";
  }
  .glyphicon-tree-deciduous:before {
    content: "\e200";
  }
  .glyphicon-cd:before {
    content: "\e201";
  }
  .glyphicon-save-file:before {
    content: "\e202";
  }
  .glyphicon-open-file:before {
    content: "\e203";
  }
  .glyphicon-level-up:before {
    content: "\e204";
  }
  .glyphicon-copy:before {
    content: "\e205";
  }
  .glyphicon-paste:before {
    content: "\e206";
  }
  .glyphicon-alert:before {
    content: "\e209";
  }
  .glyphicon-equalizer:before {
    content: "\e210";
  }
  .glyphicon-king:before {
    content: "\e211";
  }
  .glyphicon-queen:before {
    content: "\e212";
  }
  .glyphicon-pawn:before {
    content: "\e213";
  }
  .glyphicon-bishop:before {
    content: "\e214";
  }
  .glyphicon-knight:before {
    content: "\e215";
  }
  .glyphicon-baby-formula:before {
    content: "\e216";
  }
  .glyphicon-tent:before {
    content: "\26fa";
  }
  .glyphicon-blackboard:before {
    content: "\e218";
  }
  .glyphicon-bed:before {
    content: "\e219";
  }
  .glyphicon-apple:before {
    content: "\f8ff";
  }
  .glyphicon-erase:before {
    content: "\e221";
  }
  .glyphicon-hourglass:before {
    content: "\231b";
  }
  .glyphicon-lamp:before {
    content: "\e223";
  }
  .glyphicon-duplicate:before {
    content: "\e224";
  }
  .glyphicon-piggy-bank:before {
    content: "\e225";
  }
  .glyphicon-scissors:before {
    content: "\e226";
  }
  .glyphicon-bitcoin:before {
    content: "\e227";
  }
  .glyphicon-btc:before {
    content: "\e227";
  }
  .glyphicon-xbt:before {
    content: "\e227";
  }
  .glyphicon-yen:before {
    content: "\00a5";
  }
  .glyphicon-jpy:before {
    content: "\00a5";
  }
  .glyphicon-ruble:before {
    content: "\20bd";
  }
  .glyphicon-rub:before {
    content: "\20bd";
  }
  .glyphicon-scale:before {
    content: "\e230";
  }
  .glyphicon-ice-lolly:before {
    content: "\e231";
  }
  .glyphicon-ice-lolly-tasted:before {
    content: "\e232";
  }
  .glyphicon-education:before {
    content: "\e233";
  }
  .glyphicon-option-horizontal:before {
    content: "\e234";
  }
  .glyphicon-option-vertical:before {
    content: "\e235";
  }
  .glyphicon-menu-hamburger:before {
    content: "\e236";
  }
  .glyphicon-modal-window:before {
    content: "\e237";
  }
  .glyphicon-oil:before {
    content: "\e238";
  }
  .glyphicon-grain:before {
    content: "\e239";
  }
  .glyphicon-sunglasses:before {
    content: "\e240";
  }
  .glyphicon-text-size:before {
    content: "\e241";
  }
  .glyphicon-text-color:before {
    content: "\e242";
  }
  .glyphicon-text-background:before {
    content: "\e243";
  }
  .glyphicon-object-align-top:before {
    content: "\e244";
  }
  .glyphicon-object-align-bottom:before {
    content: "\e245";
  }
  .glyphicon-object-align-horizontal:before {
    content: "\e246";
  }
  .glyphicon-object-align-left:before {
    content: "\e247";
  }
  .glyphicon-object-align-vertical:before {
    content: "\e248";
  }
  .glyphicon-object-align-right:before {
    content: "\e249";
  }
  .glyphicon-triangle-right:before {
    content: "\e250";
  }
  .glyphicon-triangle-left:before {
    content: "\e251";
  }
  .glyphicon-triangle-bottom:before {
    content: "\e252";
  }
  .glyphicon-triangle-top:before {
    content: "\e253";
  }
  .glyphicon-console:before {
    content: "\e254";
  }
  .glyphicon-superscript:before {
    content: "\e255";
  }
  .glyphicon-subscript:before {
    content: "\e256";
  }
  .glyphicon-menu-left:before {
    content: "\e257";
  }
  .glyphicon-menu-right:before {
    content: "\e258";
  }
  .glyphicon-menu-down:before {
    content: "\e259";
  }
  .glyphicon-menu-up:before {
    content: "\e260";
  }

  • 由于上述代码依赖glyphicons-.eot、glyphicons-.ttf、glyphicons-*.svg文件，则需要到bootstrap官网下载版本3的文件，并将font文件夹放到dist中即可。