例求一个数的绝对值国圈 ch4 1. c*/ #include <stdio. h> main Int x,y printf( Enter an integer scanf("%d", &x) if(y<0 printf("integer: %/d--->absolute value: %d\", x, y) 运行: Enter an integer:-12 integer: -12--->absolute value: 12/*ch4_1.c*/ #include <stdio.h> main() { int x,y; printf("Enter an integer:"); scanf("%d" ,&x); y=x; if(y<0) y= -y; printf("\ninteger:%d--->absolute value:%d\n" ,x,y); } 例 求一个数的绝对值 运行：Enter an integer:-12 integer:-12--->absolute value :12