分别用指针数组和二维数组生成二维空间，存储数据并释放。比如，数据如下： 
//使用了下fgetc()
1 #include <iostream> 2 #include <stdio.h> 3 using namespace std; 4 5 6 int main() 7 { 8 #if 0 //生成二维数组存储 9 FILE* fp = fopen("G:\qtcode\temp.txt","r"); 10 11 //char buf[3][10] ={0}; 12 char (*buf)[10] = new char[3][10]; 13 14 int i,j,ch; 15 for(i = 0;i<3;i++) 16 { 17 for(j = 0;j<8;j++) 18 { 19 ch = fgetc(fp); 20 if(ch == ' ' || ch == EOF) 21 break; 22 buf[i][j] = ch; 23 } 24 buf[i][j] = ' '; 25 } 26 27 for(i = 0;i<3;i++) 28 { 29 cout<<buf[i]<<endl; 30 } 31 delete []buf; 32 fclose(fp); 33 #endif 34 35 #if 1 //生成指针数组存储 36 FILE* fp = fopen("G:\qtcode\temp.txt","r"); 37 38 char **buf = new char*[3]; 39 int i,j,ch; 40 for(i = 0;i<3;i++) 41 { 42 *(buf+i) = new char[8] ; 43 for(j = 0;j<8;j++) 44 { 45 ch = fgetc(fp); 46 if(ch == ' ' || ch == EOF) 47 break; 48 buf[i][j] = ch; 49 } 50 buf[i][j] = ' '; 51 } 52 for(i = 0;i<3;i++) 53 { 54 cout<<buf[i]<<"***"<<endl; 55 delete [](*(buf+i)); 56 // delete[] (buf[i]); 57 } 58 delete []buf; 59 fclose(fp); 60 61 #endif 62 return 0; 63 }