|  | @@ -677,10 +677,12 @@ export default {
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				|  |  |              this.$message.error('必须加入一个单机班或合奏班')
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				|  |  |              return;
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				|  |  |            }
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				|  |  | +          let snapClassIds;
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				|  |  | +          maskForm.snapClass.length > 0 ? snapClassIds = maskForm.snapClass.join(',') : snapClassIds = null
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				|  |  |            let params = {
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				|  |  |              signClassId: maskForm.signClass,
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				|  |  |              mixClassId: maskForm.mixClass,
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				|  |  | -            snapClassIds: maskForm.snapClass.join(','),
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				|  |  | +            snapClassIds,
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				|  |  |              highClassId: maskForm.highClass,
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				|  |  |              courseFee: maskForm.courseFee,
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				|  |  |              temporaryCourseFee: maskForm.temporaryCourseFee,
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