摘要:abs原型:extern int abs(int x);用法:#include功能:求整数x的绝对值说明:计算|x|, 当x不为负时返回x,否则返回-x举例: 1 #include 2 3 main() { 4 int x; 5 clrscr(); // clear screen 6 x=-5; 7 printf("|%d|=%d\n",x,abs(x)); 8 x=0; 9 printf("|%d|=%d\n",x,abs(x));10 x=+5;11 printf("|%d|=%d\n",x,abs(x));...
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