C++基础 —— (22)C++14 选择语句
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    switch(val){
    case 0:
        std::cout<<"val is zero"<<std::endl;
        break;
    case 1:
    case 2:
    case 3:
    case 4:
        std::cout<<"val is not zero, but val is small than 5"<<std::endl;
        break;
    case 5:
        std::cout<<"val is 5"<<std::endl;
        break;
    default:
        std::cout<<"val is not in [0,5]"<<std::endl;
    }
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——张人杰·www.v-signon.com学习者共勉
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