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                ## **part_particles_count** **返回指定粒子系統中當前創建的粒子數量。** #### **語法**: part_particles_count(ind); |參數| 描述| |:---|:---| |ind| 粒子系統的ID.| **返回:** 實數 #### **描述** 有了這個功能,你可以檢查一個粒子系統當前是否在房間里有任何粒子,它也會返回它們的數量。 #### **舉例**: ```js if part_particles_count(Sname) = 0 { part_system_destroy(Sname); instance_destroy(); } ``` 上面的代碼將檢查在變量“Sname”中索引粒子系統中的粒子數,如果沒有,它將摧毀這個粒子系統和當前實例。
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