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1.4.2. 为什么 Java 中只有值传递？ 答非所问 #876

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CarterYang0 opened this issue Jul 30, 2020 · 0 comments
Open

1.4.2. 为什么 Java 中只有值传递？ 答非所问 #876

CarterYang0 opened this issue Jul 30, 2020 · 0 comments

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@CarterYang0
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@CarterYang0 CarterYang0 commented Jul 30, 2020

建议修改答案如下
为什么java中只有值传递：
1.选择值传递的原因：为了保护实参，牺牲空间做值拷贝
2.只保留的原因：统一只用值传递，简单方便安全易懂（这个想法和取消指针不谋而和）
注：其他语言保留引用传递的原因：方便修改实参，不用拷贝实参，节约空间时间
（才疏学浅，欢迎斧正）
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