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				@@ -74,7 +74,7 @@ export default defineComponent({ 
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				       await catchStore.getSubjects(); 
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				       if (forms.type === 'MUSIC') { 
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				-        orginHeight.value = collapseWrapRef.value.offsetHeight; 
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				+        orginHeight.value = collapseWrapRef.value?.offsetHeight; 
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				         // hiddenHeight.value = collapseWrapRef.value.offsetHeight / line.value; 
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				         // 默认隐藏 
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				         getLive(); 
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				@@ -97,7 +97,7 @@ export default defineComponent({ 
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				                   nextTick(() => { 
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				                     if (forms.type === 'MUSIC') { 
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				-                      orginHeight.value = collapseWrapRef.value.offsetHeight; 
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				+                      orginHeight.value = collapseWrapRef.value?.offsetHeight; 
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				                       // hiddenHeight.value = 
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				                       //   collapseWrapRef.value.offsetHeight / line.value || 0; 
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				                       // 默认隐藏 
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