请写出与以下else-if语句等价的switch语句。if(choice == 1) price = 3.0;else if(choice == 2) price = 2.5;else if(choice == 3) price = 4.0;else if(choice == 4) price = 3.5;else{ price = 0.0; }switch{case 1: price=3.0; break;case 2: price=2.5; break;case 3:price=4.0;break;case 4: price=3.5;break; price=0.0; break;}