資源簡(jiǎn)介
根據(jù)節(jié)點(diǎn)導(dǎo)納矩陣計(jì)算電路參數(shù)的簡(jiǎn)單C++程序
代碼片段和文件信息
#include
#include
#include
#include
#define?X?50
static?int?nbcty[X]br[X]f[X]t[X];
float?va1[X]va2[X];
float?vay[X]vai[X]var[X];
float?ynr[X][X]jnr[X]yni[X][X];
void?input()
{
int?kw;
char?filename[10];
FILE?*fp;
cout<<“\nplease?input?data?file?name\n“;
cin>>filename;
if((fp=fopen(filename“r+“))==NULL)
{
cout<<“cannot?open?file\n“;
exit(0);
}
fscanf(fp“%f%d%d%d“&w&n&b&c);
for(k=1;k<=c;k++)
fscanf(fp“%d%d%f%f“&ty[k]&br[k]&va1[k]&va2[k]);
for(k=1;k<=b;k++)
fscanf(fp“%d%d“&f[k]&t[k]);
fclose(fp);
}
void?makeyj()
{
int?i;
for(i=1;i<=c;i++)
{
if(ty[i
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