blocks|key|883747|text|在您的示例中，没有区别，但存在以下区别：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|883748|int+var+=+0;
int+var2+=+%2B%2Bvar;|code-block|syntax|javascript|883749|和：|883750|int+var+=+0;
int+var2+=+var%2B%2B;|883751|在第一种情况下，var2的值是1，而在第二种情况下，值是0。|883752|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In your examples, there is no difference, there is however a difference between:

<pre><code>int var = 0;
int var2 = ++var;
</code></pre>

and:

<pre><code>int var = 0;
int var2 = var++;
</code></pre>

In the first case, the value of var2 is 1 while in the second, it's 0.

blocks|key|666615|text|%2B%2Bi是前置增量，它在表达式中出现的任何内容之前完成。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|666616|i%2B%2B是后减量，它是在表达式中出现的任何内容之后执行的。|666617|在第一个循环中，您将从0运行到9。在第二个循环中，它将从1运行到9。|666618|我的建议是:避免这两种情况(例外可能是i%2B%2B；或者第一个循环)。太复杂了，无法在表达式中查找。|666619|我花了一整天的时间调试|666620|myArray(i%2B%2B)%2516+=数据|666621|并试图找出为什么它有时会尝试写入data16|666622|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

++i is preincrement, it is done before anything in the expression it appears.

i++ is postdecrement, it is done after anything in the expression it appears.

in the first loop, you'll run from 0 to 9. In the second, it will run from 1 to 9.

My advice: avoid both of them (exceptions may be i++; or the first loop). Too tricky to look for in the expression.

I passed a long day debugging

myArray[(i++)%16] = data

and trying to find why it did try to write to data[16] sometimes

blocks|key|883845|text|var%2B%2B在递增之前返回它的值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|883846|%2B%2Bvar在递增后返回它的值。|883847|int+var+=+0;
System.out.println(var%2B%2B);+//+returns+0;

var+=+0;
System.out.println(%2B%2Bvar);+//+returns+1|code-block|syntax|javascript|883848|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

var++ returns its value before incrementing. 
++var returns its value after incrementing.

<pre><code>int var = 0;
System.out.println(var++); // returns 0;

var = 0;
System.out.println(++var); // returns 1
</code></pre>

blocks|key|666727|text|事实上，这相当简单。在语句中首先执行前置增量%2B%2Bi。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|666728|j+=+%2B%2Bi+%2B1;|code-block|syntax|javascript|666729|等同于|666730|i+=+i%2B1;
j+=+i%2B1;|666731|而在末尾执行后增量i%2B%2B；|666732|j+=+i%2B%2B+%2B1;|666733|666734|j+=+i%2B1;
i+=+i%2B1;|666735|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|V|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|X|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|O|3|H|5|6|7|Z|8|@]|9|@]|A|$]]|$1|P|3|Q|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|R|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|S|$]]

In fact, this is rather simple. The preincrement ++i is executed first in the statement.

<pre><code>j = ++i +1;
</code></pre>

is equivalent to

<pre><code>i = i+1;
j = i+1;
</code></pre>

whereas the post increment i++ is executed at the end;

<pre><code>j = i++ +1;
</code></pre>

is equivalent to

<pre><code>j = i+1;
i = i+1;
</code></pre>

In programming, particularly in Java, what is the difference between:

<pre><code>int var = 0;
var++;
</code></pre>

and 

<pre><code>int var = 0;
++var;
</code></pre>

What repercussions would this have on a for loop?

e.g.

<pre><code>for (int i = 0; i &lt; 10; i++) {}

for (int i = 0; i &lt; 10; ++i) {}
</code></pre>

The difference between ++Var and Var++

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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在编程中，尤其是在Java中，以下两者有什么区别：int var = 0;var++;和int var = 0;++var;这会对for循环产生什么影响？例如：for (int i = 0; i < 10; i++) {}for (int i = 0; i < 10; ++i) {}

问++Var和Var++之间的区别
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问++Var和Var++之间的区别EN