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int类型初始化默认值

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魇生绮梦

#1 Created at ... [Delete] [Delete and Lock User]

如果int类型的变量不写初值的话，好像println函数无法打印该变量的值。

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#2 Created at ... [Delete] [Delete and Lock User]

局部变量需要,成员变量不需要,有默认值

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