调整

public/react/src/modules/courses/shixunHomework/Homeworddescription.js

@@ -89,7 +89,7 @@ class Homeworddescription extends Component {
                         {/*<TextArea  placeholder="作业说明..." value={this.state.description} onInput={this.settextarea} style={{"height": "120px"}}/>*/}
                             {/*<TextArea style={{"height": "120px"}}*/}
                             {/*          autoComplete="off" ></TextArea>*/}
-                        <TPMMDEditor ref={this.mdRef} placeholder={'作业说明'}
+                        <TPMMDEditor ref={this.mdRef} placeholder={'请输入作业说明'}
                                      mdID={'courseMessageMD'} initValue={this.state.description}   className="courseMessageMD" onChange={this.settextarea} style={{"height": "120px"}}></TPMMDEditor>
                     </Form.Item>
                     <div className="clearfix mt10">