有一个一维数组,元素按从小到大排列。输入一个数,在数组中查找,若找到...答:int main(){ int n=10,i,j,x,a[20]={2,4,6,7,34,45,67,84,88,90};printf("原来的数组:\n");for(i=0;i<n;i++)printf("%d ",a[i]);printf("\nplease input a number: ");scanf("%d",&x);for(i=0;i<n;i++)if(a[i]==x)break;if(i<=n-1){ for(;i<n...