可是______
( _% S9 `6 Y* z# O$ @& L, n#include <math.h>
: p; W4 G, F( g$ F- dsuing namespace io; ) A0 }/ t a; ]
using namespace std; / l. J0 v, `+ H% Q2 D2 A+ U
void main(){ 3 j# {- O; K7 ^5 F; n5 w' _
double r, c, n; ! O' ~. U! o+ L' L8 P4 e( ^6 h7 O
cout<<"You are wellcome"<<endl<<"螺旋半径 r="; ! ]% R( G$ Y* q' O0 x! f( E# H
cin>>r;
( N0 _& J. y1 b, K5 K5 Lcout<<"螺距 c=";
$ n' w: b3 u! Rcin>>c; ; S8 A, [, e% j5 h+ `" e) Y" c
cout<<"圈数 n="; 2 G8 M3 J) P" |" W" j5 G. Q1 J& Y; J
cin>>n;
) d/ T: E' J0 ]* S7 }cout<<"螺旋筋长度 = "<<sqrt( pow(pi()*r*r,2.0) + pow(c,2.0) )<<endl;
1 ]0 X- K u7 t7 Fcout<<"Bye!"<<endl; * p# j2 i6 l" X V+ j
getchar();
! K5 P( g7 N# n- T}
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' L8 _1 n% h; P, i如果真这么简单,为什么…… . R/ {- U3 o0 K/ P( l- L5 o
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