StarDict 詞典idx檔案格式：

每一個條目在單詞列表中包含陸續三個域：

word_str;                 // a utf-8 string terminated by '\0'.

                                  // 一個 utf-8 編碼字串，以 '\0' 終止符結束。word_str 的長度將是小於 256 的

word_data_offset; // word data's offset in .dict file

                                  // 單詞資料在 .dict 檔案中的偏移，

                                  //If the version is "3.0.0" and "idxoffsetbits=64", 

                                  //word_data_offset will be 64-bits unsigned number in network byte order. 

word_data_size;   // word data's total size in .dict file

                                  // 單詞資料在 .dict 檔案中的總大小，word_data_size should be 32-bits unsigned number

                                  // in network byte order.

package main


import (
//    "bufio"
    "io"
    "os"
    "fmt"
     "strconv"
)
func main() {
    fi, err := os.Open("gaojihanyudacidian_fix.idx")/*現代漢語詞典\\*/
    if err != nil { panic(err) }
    defer fi.Close()

    fo, err := os.Create("output.txt")
    if err != nil { panic(err) }
    defer fo.Close()
	/*每次只讀4個位元組*/
    read_buf := make([]byte,4)
    jiange := make([]byte,1)
    huanghuang := make([]byte,1)
    jiange[0]=9
     huanghuang[0]=10   
    var pos,nextPos uint64 = 0,0

    /*標記當下需要讀取的是哪個域的資料
    為1是word_str  
    為2是word_data_offset  
    為3是word_data_size*/ 
    var setp int = 1  
    /*記錄已經儲存在word_str中的字元個數（不包括字串最後的\0），也就是說下次從word_str[lenth_of_word_str]處開始存*/
    var lenth_of_word_str,charNum int = 0,0
    word_str := make([]byte,257)
    var tmpChar byte =0
    var word_data_offset uint64 = 0  
    var word_data_size uint64 = 0    
    count :=1
    for{
    	pos=nextPos
	count++
        n,err := fi.ReadAt(read_buf,(int64)(pos))
        if err != nil && err != io.EOF{
            panic(err)
        }
        /*檔案格式要求：讀取資料小於4個位元組時說明檔案結束*/
        if   n < 4{
            fmt.Printf("\nfinish read\n")
            break
        }
	switch setp {
	case 1:
//		fmt.Println("1:")
		tmpChar=read_buf[0]
		/*如果第一個字元是‘\0’說明該步驟已經結束*/
		if  tmpChar !=  0{
		
			/*因為可能有逗號，所以可能只有1個或者倆個位元組組成一個字元*/
			if tmpChar < 128{
				charNum=1/*charNum記錄utf8編碼的字元數*/
			}else if tmpChar < 194{
				panic(err)
			}else if tmpChar < 224{
				charNum=2
			}else if tmpChar < 240{
				charNum=3
			}else{
				panic(err)
			}
			
			
			read_buf[charNum]=0
			str1 := (string)(read_buf[0:charNum+1])
			copy(word_str[lenth_of_word_str:lenth_of_word_str+charNum], read_buf[:charNum])
			lenth_of_word_str=lenth_of_word_str+charNum
			nextPos=nextPos+(uint64)(charNum)
			continue
		}else{
			word_str[lenth_of_word_str]=9
			nextPos=nextPos+1
			
		}		
		
        	
	case 2:

		word_data_offset  =0
		word_data_offset  = word_data_offset+((uint64)(read_buf[0]))*16*16*16*16*16*16
		word_data_offset  = word_data_offset+((uint64)(read_buf[1]))*16*16*16*16
		word_data_offset  = word_data_offset+((uint64)(read_buf[2]))*16*16
		word_data_offset  = word_data_offset+(uint64)(read_buf[3])
		nextPos=nextPos+4
		
//        	fmt.Printf("word_data_offset  =%d   \n",word_data_offset/*(uint64)(read_buf[3])*/)
	case 3:

		word_data_size  =0
		word_data_size  = word_data_size+(uint64)(read_buf[0])*16*16*16*16*16*16
		word_data_size  = word_data_size+(uint64)(read_buf[1])*16*16*16*16
		word_data_size  = word_data_size+(uint64)(read_buf[2])*16*16
		word_data_size  = word_data_size+(uint64)(read_buf[3])
		nextPos=nextPos+4

	default:

        }
        /*現在可以寫入了*/

	if setp == 3{
	
		if _,err := fo.Write( word_str[:lenth_of_word_str+1]); err != nil{
		    panic(err)
		}
		
	        word_data_offset_str := strconv.FormatUint(word_data_offset,10)  
	        word_data_size_str := strconv.FormatUint(word_data_size,10)   		
		if _,err := fo.WriteString(  word_data_offset_str); err != nil{
		    panic(err)
		}
 		
		if _,err := fo.Write( jiange[0:1]); err != nil{
		    panic(err)
		}		
		if _,err := fo.WriteString( word_data_size_str); err != nil{
		    panic(err)
		}		
		if _,err := fo.Write( huanghuang[0:1]); err != nil{
		    panic(err)
		}
		lenth_of_word_str=0
	}
        setp=setp+1
        if setp > 4{
		setp = 1   
	}
    }
}