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src/components/Index/index.js

@@ -142,23 +142,23 @@ class Index extends Component {
 
                 {
 
-                    this.state.lives && this.state.lives.length > 0 &&
+                    (this.state.lives && this.state.lives.length > 0) ?
                     <div className='lives'>
                         <h2 className="title">近期直播</h2>
                         <ScrollBox livesList={this.state.lives} liveCourse={this.liveCourse}/>
-                    </div>
+                    </div> : null
                 }
 
 
                 {
-                    this.state.modules && this.state.modules.length > 0 && this.state.modules.map((item, index) => {
+                    (this.state.modules && this.state.modules.length > 0) ? this.state.modules.map((item, index) => {
                         return (
                             <div key={index}>
                                 <CourseList modules={item}/>
                                 <p className="borderTop"></p>
                             </div>
                         )
-                    })
+                    }) : null
                 }
 
                 <div className="category all-course">