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示例
1
:
文本域
示例
2
:
设置宽度和行数
");
window.frames["iframe_show370"].document.write(decodeHtml($("textarea#stepcodeTextarea370").val()));
window.frames["iframe_show370"].document.close();
$(window.frames["iframe_show370"]).load(function(){
$("#iframe_show370").height($("#iframe_show370").contents().find("body").height()+showittryitheight);
});
$("#iframe_show370").height($("#iframe_show370").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<textarea>abc
def
</textarea>
<textarea>abc
def
</textarea>
");
window.frames["iframe370"].document.write(decodeHtml(code370));
window.frames["iframe370"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe370"]).load(function(){
$("#iframe370").height($("#iframe370").contents().find("body").height()+showittryitheight);
});
$("#iframe370").height($("#iframe370").contents().find("body").height()+showittryitheight);
alreadyWriteCode370 = code370;
$("#rendering370").hide();
$("#rendered370").show();
}
var tRereshRetry2DemoPanel370 = setInterval(rereshRetry2DemoPanel370,1000);
var binded370 = false;
$("textarea#stepcodeTextarea370").keyup(function(){
if(!binded370){
$(window).bind('beforeunload',function(){
binded370 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code370 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code370!=newCode){
// window.frames["iframe370"].document.write("
");
// window.frames["iframe370"].document.write(decodeHtml($("textarea#stepcodeTextarea370").val()));
// window.frames["iframe370"].document.close();
// $(window.frames["iframe370"]).load(function(){
// $("#iframe370").height($("#iframe370").contents().find("body").height()+showittryitheight);
// });
// code370 = newCode;
// }
});
$(".tryButton370").click(function(){
$("#tryDiv370").show();
$("#stepcodeTextarea370").focus();
$("#stepcodeTextarea370").height(200);
$("#iframe370").height(0);
window.frames["iframe370"].document.write("
");
window.frames["iframe370"].document.write(decodeHtml($("textarea#stepcodeTextarea370").val()));
window.frames["iframe370"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe370"]).load(function(){
$("#iframe370").height($("#iframe370").contents().find("body").height()+showittryitheight);
});
$("#iframe370").height($("#iframe370").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor370.focus();
editor370.setSize(null, "250");
$("#rendering370").hide();
$("#rendered370").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor370 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea370"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor370.on("change",function(doc){
if(!binded370){
$(window).bind('beforeunload',function(){
binded370 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code370 = newCode;
$("textarea#stepcodeTextarea370").val(newCode);
if(alreadyWriteCode370!=code370){
lastModifedTime370 = new Date().getTime();
$("#rendering370").show();
$("#rendered370").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor370 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor370.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv370").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑，再次点击恢复
|
|
渲染中
渲染完成
|
");
window.frames["iframe_show371"].document.write(decodeHtml($("textarea#stepcodeTextarea371").val()));
window.frames["iframe_show371"].document.close();
$(window.frames["iframe_show371"]).load(function(){
$("#iframe_show371").height($("#iframe_show371").contents().find("body").height()+showittryitheight);
});
$("#iframe_show371").height($("#iframe_show371").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<textarea cols="30" rows="8">123456789012345678901234567890
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890</textarea>
<textarea cols="30" rows="8">123456789012345678901234567890
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890</textarea>
");
window.frames["iframe371"].document.write(decodeHtml(code371));
window.frames["iframe371"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe371"]).load(function(){
$("#iframe371").height($("#iframe371").contents().find("body").height()+showittryitheight);
});
$("#iframe371").height($("#iframe371").contents().find("body").height()+showittryitheight);
alreadyWriteCode371 = code371;
$("#rendering371").hide();
$("#rendered371").show();
}
var tRereshRetry2DemoPanel371 = setInterval(rereshRetry2DemoPanel371,1000);
var binded371 = false;
$("textarea#stepcodeTextarea371").keyup(function(){
if(!binded371){
$(window).bind('beforeunload',function(){
binded371 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code371 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code371!=newCode){
// window.frames["iframe371"].document.write("
");
// window.frames["iframe371"].document.write(decodeHtml($("textarea#stepcodeTextarea371").val()));
// window.frames["iframe371"].document.close();
// $(window.frames["iframe371"]).load(function(){
// $("#iframe371").height($("#iframe371").contents().find("body").height()+showittryitheight);
// });
// code371 = newCode;
// }
});
$(".tryButton371").click(function(){
$("#tryDiv371").show();
$("#stepcodeTextarea371").focus();
$("#stepcodeTextarea371").height(200);
$("#iframe371").height(0);
window.frames["iframe371"].document.write("
");
window.frames["iframe371"].document.write(decodeHtml($("textarea#stepcodeTextarea371").val()));
window.frames["iframe371"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe371"]).load(function(){
$("#iframe371").height($("#iframe371").contents().find("body").height()+showittryitheight);
});
$("#iframe371").height($("#iframe371").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor371.focus();
editor371.setSize(null, "250");
$("#rendering371").hide();
$("#rendered371").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor371 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea371"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor371.on("change",function(doc){
if(!binded371){
$(window).bind('beforeunload',function(){
binded371 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code371 = newCode;
$("textarea#stepcodeTextarea371").val(newCode);
if(alreadyWriteCode371!=code371){
lastModifedTime371 = new Date().getTime();
$("#rendering371").show();
$("#rendered371").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor371 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor371.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv371").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑，再次点击恢复
|
|
渲染中
渲染完成
|
代码高亮插件双击即可选中，不过部分同学反应，通过代码高亮插件复制的代码无法在IDEA里正常显示，这里提供TEXTAREA的方式，方便复制，谢谢
1. 自行完成练习
根据练习目标尽量自己实现代码效果，期间会碰到疑问，难题，和自己不懂的地方，这些都是必要的过程
2. 带着疑问查看答案
完成过程中，碰到无法解决的问题，带着疑问，查看答案，分析答案的解决思路
3. 查看答案讲解视频
依然有不明白的地方，点开视频讲解，带着疑问，听视频讲解有问题的部分
4. 再做一遍
理解后，再从头做一遍，把有疑问的地方都捋清楚
5. 总结
最后再总结一遍，总结思路，总结解决办法，以后遇到类似的问题，怎么处理
HOW2J公众号，关注后实时获知布最新的教程和优惠活动，谢谢。
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