学习明细如果没有不再调用接口

pages/learningStatistics/learningStatistics.vue

@@ -167,7 +167,9 @@
 						}
 						}
 						this.chartData.categories = categories;
 						this.chartData.categories = categories;
 						this.chartData.series = [{name:'月',data:data}];
 						this.chartData.series = [{name:'月',data:data}];
-						this.userStudyTime();
+						if(this.studyInfos){
+							this.userStudyTime();
+						}
 					}
 					}
 				})
 				})
 			},
 			},