说实话我对C++语言不是很懂，更谈不上对用法的了解了。我一看到C++大量的英文组合就头疼，每次上课也只是一知半解。我就像以下图片中的人一样，老师上课讲，我在下面昏昏欲睡。
如：
Lab Exercise — Overloading printArray①
#include <iostream>
using std::cout;
using std::endl;
template< typename T >
void printArray( const T *array, int count ){
for ( int i = 0; i < count; i++ )
cout << array[ i ] << " ";
cout << endl; }
template< typename T >
int printArray(const T *array,int count, int lowSubscrip, int highSubscript ){
if(highSubscript<=0||lowSubscrip<0||lowSubscrip>=highSubscript||count<(highSubscript-lowSubscrip))
return 0;
int coun = 0;
for ( int i=lowSubscrip;i<=highSubscript;i++){
coun++;
cout << array[ i ] << ' '; }
cout<< '\n';
return coun; }
int main()
{
const int ACOUNT = 5;
const int BCOUNT = 7;
const int CCOUNT = 6;
int a[ ACOUNT ] = { 1, 2, 3, 4, 5 };
double b[ BCOUNT ] = { 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7 };
char c[ CCOUNT ] = "HELLO";
int elements;
cout << "\nUsing original printArray function\n";
printArray( a, ACOUNT );
cout << "Array a contains:\n";
elements = printArray(a,ACOUNT,0,ACOUNT-1);
cout << elements << " elements were output\n";out << "Array a from positions 1 to 3 is:\n";
elements = printArray(a,ACOUNT,1,3);
cout << elements << " elements were output\n";
cout << "Array a output with invalid subscripts:\n";
elements = printArray(a,ACOUNT,-1,10);
cout << elements << " elements were output\n\n";
cout << "\nUsing original printArray function\n";
printArray( b, BCOUNT );
cout << "Array b contains:\n";
elements = printArray(b,BCOUNT,0,BCOUNT - 1);
cout << elements << " elements were output\n";
cout << "Array b from positions 1 to 3 is:\n";
elements = printArray(b,BCOUNT,1,3);
cout << elements << " elements were output\n";
cout << "Array b output with invalid subscripts:\n";
elements =printArray(b,BCOUNT,-1,10);
cout << elements << " elements were output\n\n";
cout << "\nUsing original printArray function\n";
printArray( c, CCOUNT );
cout << "Array c contains:\n";
elements =printArray(c,CCOUNT,0, CCOUNT - 2);
cout << elements << " elements were output\n";
cout << "Array c from positions 1 to 3 is:\n";
elements =printArray(c,CCOUNT,1, 3);
cout<< elements << " elements were output\n";
cout << "Array c output with invalid subscripts:\n";
elements = printArray(c,CCOUNT,-1, 10);
cout << elements << " elements were output" << endl;
return 0;
}
这段代码看了就头大，我只会基本的，知道到开头是：#include <iostream>
输入cin,输出cout等等最简单的，一旦混在一起我就两眼抓瞎。