cprimerplus第六版课后编程练习答案

cout<<\

<

return0;

}

//ex3.2--计算相应的bodymassindex（体重指数）

#include

constintinch_per_feet=12;

constdoublemeter_per_inch=0.0254;

constdoublepound_per_kilogram=2.2;

intmain()

{

usingnamespacestd;

cout<<\

cout<<\（输入你身高的英尺部分）:_\\b\

intht_feet;

cin>>ht_feet;

cout<<\（输入你身高的英寸部分）:_\\b\

intht_inch;

cin>>ht_inch;

cout<<\

doublewt_pound;

cin>>wt_pound;

intinch;

inch=ht_feet*inch_per_feet+ht_inch;

doubleht_meter;

ht_meter=inch*meter_per_inch;

doublewt_kilogram;

wt_kilogram=wt_pound/pound_per_kilogram;

cout<

cout<<\

cout<<\身高:\英尺inch)\\n\身高:\米meter)\\n\

<<\体重:\千克kilogram)\\n\

doubleBMI;

BMI=wt_kilogram/(ht_meter*ht_meter);

cout<<\体重指数)is\

return0;

}

//ex3.3以度，分，秒输入，以度输出

#include

constintminutes_per_degree=60;

constintseconds_per_minute=60;

intmain()

{

usingnamespacestd;

cout<<\

cout<<\

intdegree;

cin>>degree;

cout<<\

intminute;

cin>>minute;

cout<<\

intsecond;

cin>>second;

doubleshow_in_degree;

show_in_degree=(double)degree+(double)minute/minutes_per_degree+(double)se

cond/minutes_per_degree/seconds_per_minute;

cout<

degree<<\

return0;

}

//ex3.4

#include

constinthours_per_day=24;

constintminutes_per_hour=60;