5 #include

2 #include 3 #include 4 using namespace std; 5 6 struct WORD { /* 创建一个结构体 / 7 int count; 8 char s; 9 void exchange( Word &word ) / 交换单词 / 10 { 11 string tStr = word.Str; 12 int tCount = word.Count; 13 word.Str = Str; 14 word.Count = Count; 15 Str = tStr; 16 Count = tCount; 17 } 18 }; 19 } w[100]; 20 21 bool isword( char a[] ) / 判断是否是一个单词 / 22 { 23 int i = 0; 24 for ( i = 0; a[i] != '\0'; i++ ) 25 if ( (a[i] >= 'a' && a[i] <= 'z') || (a[i] >= '0' && a[i] <= '9') ) 26 return(true); 27 else 28 return(false); 29 } 30 31 32 int judge( char b[], int n ) / 判断该单词是否出现过 / 33 { 34 if ( n > 0 ) 35 for ( int i = 0; i < n; i++ ) 36 { 37 if ( !strcmp( b, &w[i].s ) ) / 出现 / 38 { 39 w[i].count++; 40 return(-1); 41 } 42 } 43 } 44 45 46 void SortWordDown( Word * words, int size ) / 降序排序 */ 47 { 48 for ( int i = 0; i < size; i++ ) 49 { 50 for ( int j = 0; j < size - 1; j++ ) 51 { 52 if ( words[j].Count < words[j + 1].Count ) 53 { 54 words[j].exchange( words[j + 1] ); 55 } 56 } 57 } 58 } 59 60 61 int main( void ) 62 { 63 char result[500]; 64 65 char ptr; 66 ifstream file( "c://A_Tale_of_Two_Cities.txt" ); / 读取 / 67 if ( !file ) 68 { 69 cout << "不能打开文件"; 70 } 71 while ( !file.eof() ) 72 { 73 file.getline( result, 500 ); 74 } 75 file.close(); 76 int j = 0; / 大写转小写 */ 77 while ( result[j] != '/0' && result[j + 1] != '/0' ) 78 { 79 if ( result[j] >= 'A' && result[j] <= 'Z' ) 80 { 81 result[j] = result[j] - 'A' + 'a'; 82 j++; 83 } 84 } 85 cout << result; 86 char sep = " "; 87 88 int i = 0; 89 ptr = strtok( result, " " ); / 利用strtok函数来分割result字符串中的单词 */ 90 while ( ptr != NULL ) 91 { 92 if ( isword( p ) != false ) 93 { 94 if ( judge( p, n ) != false ) 95 { 96 w[n].s = p; / 赋值给数组 / 97 n++; 98 } 99 } 100 ptr = strtok( NULL, " " ); 101 } 102 int t = 0; 103 ofstream outfile; / 输出文件到result1 / 104 outfile.open( "Result1.txt" ) 105 SortWordDown( w, count ); 106 while ( w[t].s ) / 输出统计结果 */ 107 { 108 if ( strlen( w[t].s ) >= 4 ) 109 { 110 outfile << w[t].s << "：" << w[t].count << '\n'; 111 t++; 112 } 113 } 114 return(0); 115 } 复制代码