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printf; default: printf; }

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printf____; break;

printf;break; default: printf; }

个顾客的购物款后,显示它应付的款数。参考代码:#include double fun;int main{ double money,m; printf; scanf; m=fun; printf("购物金额为%5.2lf时,实际付款为% 5.2lf。n",money,m); return 0;} double fun{ int t=8; double off; switch { case 0: case 1:off=0;break; case 2:off=0.05;break; case 3:off=0.1;break; case 4: case 5: case 6: case 7:off=0.15;break; default:off=0.2; } return money*__;}

m=1;else if(x<70) m=2; else if(x<80) m=3; else if(x<90) m=4; else if(x<100) m=5;switch语句