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Static attributes in Singleton mode

Source: Internet
Author: User
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In Singleton mode, three private and one public are usually used. why do we need to set a static attribute to store objects? Just set the property to private? I 'd like to explain your answers. In Singleton mode, three private and one public are usually used. why do we need to set a static attribute to store objects? Just set the property to private? I 'd like to explain your answers.

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In Singleton mode, three private and one public are usually used. why do we need to set a static attribute to store objects? Just set the property to private? I 'd like to explain your answers.

Because the static member method can only set and obtain static member attributes,

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