C语言if语句和switch语句怎么同时使用啊

_suudjdjd 2023-03-20 21:48

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  ①顆☆星飘过

  2023-03-20 22:20

  判断使用哪个标准（国标、亚洲或中国）用switch,判断胖瘦用if，就是点到点用switch，区间到点用if追问没错，我知道啊。能把这题的答案写一下吗，谢谢。

  追答#includeint main(){const char *pMsg[]= {"偏瘦","正常","超重","偏胖","肥胖","重度肥胖","极重度肥胖"};enum{WTO_Standard = 0, /*国际*/Asia_Standard = 1, /*亚洲*/China_Standard = 2 /*中国*/} BIM_Standard;int nStandard=0; /*分类标准*/float fHeight=0, fWeight=0; /*身高，体重*/scanf("%f %f %d",&fHeight,&fWeight,&nStandard);/*输入身高（m），体重（KG），分类标准*/float fBMI=fWeight/fHeight;/*计算体重指数BMI（Body Mass Index）公式：体重（KG）/身高（米）*/switch(nStandard){case WTO_Standard:if(fBMI<18.5){puts(pMsg[0]);}else if(fBMI<24.9){puts(pMsg[1]);}else if(fBMI==25){puts(pMsg[2]);}else if(fBMI<29.9){puts(pMsg[3]);}else if(fBMI<34.9){puts(pMsg[4]);}else if(fBMI<39.9){puts(pMsg[5]);}else{puts(pMsg[6]);}break;case Asia_Standard:if(fBMI<18.5){puts(pMsg[0]);}else if(fBMI<22.9){puts(pMsg[1]);}else if(fBMI==23){puts(pMsg[2]);}else if(fBMI<24.9){puts(pMsg[3]);}else if(fBMI<29.9){puts(pMsg[4]);}else{puts(pMsg[5]);}break;case China_Standard:if(fBMI<18.5){puts(pMsg[0]);}else if(fBMI<23.9){puts(pMsg[1]);}else if(fBMI==24){puts(pMsg[2]);}else if(fBMI<26.9){puts(pMsg[3]);}else if(fBMI<29.9){puts(pMsg[4]);}else{puts(pMsg[5]);}break;default:break;}return 0;}

  点对点的判断用switch，区间判断用if
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