有15个数按由小到大顺序放在一个数组中，输入一个数，要求用折半查找法找出该数是数组中的第几个元素的值，如果该数不在数组中，则打印出无此数 的C程序代码 谢谢！！！ -15 the number of small to large order placed by an array, enter a number, asked to use binary search method to find the number is the first of several elements of the array value, if the number is not in the array, then print out no such number of C code thank you! ! !