Introduction - If you have any usage issues, please Google them yourself
In this case with a loop to a surprising array of values into the elements, and then the second output of each odd-numbered loop. For statements in the first, the expression 3 omitted. The following variables are used in standard expression i++, to modify the cycle variable. Of course, the second for statement can also do so, C language allows expression of that subscript. Procedures in the last two printf statements output a [5] the value, we can see that the current standard is not an integer will be rounded automatically.