表达式( y *(y + 5)); 将被放置在这样的堆栈中:
1. [++y]2. [operation: *]3. [y++ + 5] // grouped because of the parenthesis
结果将按照该顺序执行
1. 10+1 = [11] // y incremented 2. [operation: *]3. 11+5 = [16] // y will only increment after this operation
该表达式的计算方式为
11 * 16 = 176



