插入字符/设置和获取光标位置/设置、获取和替换选中的文本
Insert value & Set/Get cursor & Set/Get/Replace selection
设置光标位置(line:1, ch:2)
获取光标位置
设置选中文本({line:1, ch:0}, {line:5, ch:100})
获取选中文本
替换选中文本为"$$$$$$$$$"
在光标处插入"????"
```javascript var testEditormd; $(function() { testEditormd = editormd("test-editormd", { width: "90%", height: 640, path : '../lib/' }); }); $("#btn1").click(function(){ testEditormd.setCursor({line:1, ch:2}); }); $("#btn2").click(function(){ console.log("getCursor =>", testEditormd.getCursor()); }); $("#btn3").click(function(){ testEditormd.setSelection({line:1, ch:0}, {line:5, ch:100}); }); $("#btn4").click(function(){ console.log("getSelection =>", testEditormd.getSelection()); }); $("#btn5").click(function(){ testEditormd.replaceSelection("$$$$$$$$$"); }); $("#btn6").click(function(){ testEditormd.insertValue("????"); }); ```