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				@@ -138,7 +138,7 @@ export default defineComponent({ 
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				             state.platformType === 'TEACHER' ? '/api-teacher' : '/api-student' 
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				         }) 
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				         musicDetail.value = res.data 
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				- 
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				+        console.log(musicDetail.value.notation, 'musicDetail') 
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				         // 取原音,如果有多个则默认第一个 
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				         const background = res.data.background 
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				         audioFileUrl.value = 
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				@@ -581,15 +581,17 @@ export default defineComponent({ 
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				                 ), 
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				                 value: () => ( 
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				                   <> 
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				-                    <span 
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				-                      class={styles.download} 
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				-                      onClick={() => { 
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				-                        staff.status = true 
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				-                      }} 
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				-                    > 
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				-                      <img src={iconChangeStaff} /> 
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				-                      <span>转谱</span> 
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				-                    </span> 
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				+                    {musicDetail.value?.notation ? ( 
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				+                      <span 
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				+                        class={styles.download} 
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				+                        onClick={() => { 
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				+                          staff.status = true 
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				+                        }} 
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				+                      > 
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				+                        <img src={iconChangeStaff} /> 
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				+                        <span>转谱</span> 
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				+                      </span> 
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				+                    ) : null} 
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				                     <span 
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				                       class={styles.download} 
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				                       onClick={() => { 
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