|  | @@ -1839,7 +1839,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
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														|  |                      }
 |  |                      }
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														|  |                  }
 |  |                  }
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														|  |                  amount = amount.add(maintenanceFee);
 |  |                  amount = amount.add(maintenanceFee);
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														|  | -                if (studentMaintenance != null) {
 |  | 
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														|  | 
 |  | +                if (maintenanceFee.compareTo(BigDecimal.ZERO) > 0 && studentMaintenance != null) {
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														|  |                      studentMaintenance.setDelFlag(1);
 |  |                      studentMaintenance.setDelFlag(1);
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														|  |                      studentInstrumentDao.update(studentMaintenance);
 |  |                      studentInstrumentDao.update(studentMaintenance);
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														|  |                  }
 |  |                  }
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														|  | @@ -1858,7 +1858,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
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														|  |                      }
 |  |                      }
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														|  |                  }
 |  |                  }
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														|  |                  amount = amount.add(cloudTeacherAmount);
 |  |                  amount = amount.add(cloudTeacherAmount);
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														|  | -                if (studentCloudTeacherOrder != null) {
 |  | 
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														|  | 
 |  | +                if (cloudTeacherAmount.compareTo(BigDecimal.ZERO) > 0 && studentCloudTeacherOrder != null) {
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														|  |                      cloudTeacherOrderService.quitCloudTeacherOrder(studentCloudTeacherOrder, cloudTeacherAmount);
 |  |                      cloudTeacherOrderService.quitCloudTeacherOrder(studentCloudTeacherOrder, cloudTeacherAmount);
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														|  |                  }
 |  |                  }
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														|  |              }
 |  |              }
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														|  | @@ -2063,7 +2063,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
 | 
											
												
													
														|  |                  }
 |  |                  }
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														|  |              }
 |  |              }
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														|  |              amount = amount.add(maintenanceFee);
 |  |              amount = amount.add(maintenanceFee);
 | 
											
												
													
														|  | -            if (studentMaintenance != null) {
 |  | 
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														|  | 
 |  | +            if (maintenanceFee.compareTo(BigDecimal.ZERO) > 0 && studentMaintenance != null) {
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														|  |                  studentMaintenance.setDelFlag(1);
 |  |                  studentMaintenance.setDelFlag(1);
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														|  |                  studentInstrumentDao.update(studentMaintenance);
 |  |                  studentInstrumentDao.update(studentMaintenance);
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														|  |              }
 |  |              }
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														|  | @@ -2082,7 +2082,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
 | 
											
												
													
														|  |                  }
 |  |                  }
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														|  |              }
 |  |              }
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														|  |              amount = amount.add(cloudTeacherAmount);
 |  |              amount = amount.add(cloudTeacherAmount);
 | 
											
												
													
														|  | -            if (studentCloudTeacherOrder != null) {
 |  | 
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														|  | 
 |  | +            if (cloudTeacherAmount.compareTo(BigDecimal.ZERO) > 0 && studentCloudTeacherOrder != null) {
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														|  |                  cloudTeacherOrderService.quitCloudTeacherOrder(studentCloudTeacherOrder, cloudTeacherAmount);
 |  |                  cloudTeacherOrderService.quitCloudTeacherOrder(studentCloudTeacherOrder, cloudTeacherAmount);
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														|  |              }
 |  |              }
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														|  |          }
 |  |          }
 |