复制数组 [英] Make copy of an array
本文介绍了复制数组的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个不断更新的数组a
.假设a = [1,2,3,4,5]
.我需要精确复制a
的副本并将其命名为b
.如果将a
更改为[6,7,8,9,10]
,则b
仍应为[1,2,3,4,5]
.做这个的最好方式是什么?我尝试了如下的for
循环:
I have an array a
which is constantly being updated. Let's say a = [1,2,3,4,5]
. I need to make an exact duplicate copy of a
and call it b
. If a
were to change to [6,7,8,9,10]
, b
should still be [1,2,3,4,5]
. What is the best way to do this? I tried a for
loop like:
for(int i=0; i<5; i++) {
b[i]=a[i]
}
,但这似乎无法正常工作.请不要使用深层复制等高级术语,因为我不知道那是什么意思.
but that doesn't seem to work correctly. Please don't use advanced terms like deep copy, etc., because I do not know what that means.
推荐答案
您可以尝试使用但是,在大多数情况下,最好使用clone():
But, probably better to use clone() in most cases:
int[] src = ...
int[] dest = src.clone();
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