（三）CodeMirror - Event"change"(instance: CodeMirror, changeObj: object){ from, // object to, // object text, // array removed, // string,被删除的字符 origin}
"beforeChange"(instance: CodeMirror, changeObj: object)1 // 如编辑行存在init字符，则取消编辑2 editors.on("beforeChange", function(cm, co) {3 if(cm.doc.children[0].lines[co.from.line].text.indexOf('init')>-1){4 co.cancel();5 }6 });
"keyHandled"(instance: CodeMirror, name: string, event: Event)当按下扩展快捷键触发
{ cm, name, // 扩展键名 event // keyPRess或keydown事件对象}
1 editors.on('keyHandled', function(cm,name,e){2 console.log(name);3 });
"renderLine"(instance: CodeMirror, line: LineHandle, element: Element)1 // 代码显示2 editors.on("renderLine", function(cm, line, elt) {3 var off = CodeMirror.countColumn(line.text, null, cm.getOption("tabSize")) * charWidth;4 elt.style.textIndent = "-" + off + "px";5 elt.style.paddingLeft = (basePadding + off) + "px";6 });