What's the Key Difference Between `i ` and ` i` in C#?

The key differences between and

in the i c# i

In C#,

and i are operators used to add numerical variables. Although they eventually increase the value of the variables by 1, there are subtle differences in the value of value and return value. i

Operation order

In contrast to the general cognition,

and

are not performed at different times of other operations. In both cases, the operation order is the same: i i

Value to get variables.

1. Create a temporary copy of the value. i
The temporary value increases to generate new values.
Storage new value in the variable.
4. Operation results
The difference is the result of the operation:

(prefix operation character):

Back to the new value. i The variable itself uses this new value update.

(suffixic operator):

Returns the original, unmodified value. i When the completion of the statement or expression, the variable itself uses the value of the value.

Example:
Important differences:

and The values ​​returned are based on the temporary copy created in step 2, not the current value of the variable after increment.

<code class="language-C#">int i = 1;
int result1 = ++i; // result1 = 2, i = 2
int result2 = i++; // result2 = 1, i = 2</code>

side effects and prone variables:

When using temporary copies to increase, another thread may modify the value of the variable. This may lead to unexpected results when using easily lost variables.

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