双语版c++ 第四章答案.doc

Chapter Four Selection and Iteration Exercises1. Rewrite the following if-else using a switch statement:if ( marriage_status = S )cout single ;else if ( marriage_status = M )cout married ;else if ( marriage_status = W )cout widowed ;else if ( marriage_status = E )cout separated ;else if ( marriage_status = D )cout divorced ;elsecout error: invalid code ;解答：switch (marriage_status)case S:cout single ;brea