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<BR>用&nbsp; 法: void far getfillsettings(struct fillsettingstype far *fillinfo);<BR>程序例:<P>#include &lt;graphics.h><BR>#include &lt;stdlib.h><BR>#include &lt;stdio.h><BR>#include &lt;conio.h><P>/&nbsp; the names of the fill styles supported */<BR>char *fname[] = { "EMPTY_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"SOLID_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"LINE_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"LTSLASH_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"SLASH_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"BKSLASH_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"LTBKSLASH_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"HATCH_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"XHATCH_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"INTERLEAVE_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"WIDE_DOT_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"CLOSE_DOT_FILL",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"USER_FILL"<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; };<P>int main(void)<BR>{<BR>&nbsp;&nbsp; /* request auto detection */<BR>&nbsp;&nbsp; int gdriver = DETECT, gmode, errorcode;<BR>&nbsp;&nbsp; struct fillsettingstype fillinfo;<BR>&nbsp;&nbsp; int midx, midy;<BR>&nbsp;&nbsp; char patstr[40], colstr[40];<P>&nbsp;&nbsp; /* initialize graphics and local variables */<BR>&nbsp;&nbsp; initgraph(&amp;gdriver, &amp;gmode, "");<P>&nbsp;&nbsp; /* read result of initialization */<BR>&nbsp;&nbsp; errorcode = graphresult();<BR>&nbsp;&nbsp; if (errorcode != grOk)&nbsp; /* an error occurred */<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Graphics error: %s\n", grapherrormsg(errorcode));<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Press any key to halt:");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getch();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1); /* terminate with an errorcode */<BR>&nbsp;&nbsp; }<P>&nbsp;&nbsp; midx = getmaxx() / 2;<BR>&nbsp;&nbsp; midy = getmaxy() / 2;<P>&nbsp;&nbsp; /* get information about current fill pattern and color*/<BR>&nbsp;&nbsp; getfillsettings(&amp;fillinfo);<P>&nbsp;&nbsp; /* convert fill information into strings */<BR>&nbsp;&nbsp; sprintf(patstr, "%s is the fill style.", fname[fillinfo.pattern]);<BR>&nbsp;&nbsp; sprintf(colstr, "%d is the fill color.", fillinfo.color);<P>&nbsp;&nbsp; /* display the information */<BR>&nbsp;&nbsp; settextjustify(CENTER_TEXT, CENTER_TEXT);<BR>&nbsp;&nbsp; outtextxy(midx, midy, patstr);<BR>&nbsp;&nbsp; outtextxy(midx, midy+2*textheight("W"), colstr);<P>&nbsp;&nbsp; /* clean up */<BR>&nbsp;&nbsp; getch();<BR>&nbsp;&nbsp; closegraph();<BR>&nbsp;&nbsp; return 0;<BR>}<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<P>函数名: getftime<BR>功&nbsp; 能: 取文件日期和时间<BR>用&nbsp; 法: int getftime(int handle, struct ftime *ftimep);<BR>程序例:<P>#include &lt;stdio.h><BR>#include &lt;io.h><P>int main(void)<BR>{<BR>&nbsp;&nbsp; FILE *stream;<BR>&nbsp;&nbsp; struct ftime ft;<P>&nbsp;&nbsp; if ((stream = fopen("TEST.$$$",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "wt")) == NULL)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fprintf(stderr,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"Cannot open output file.\n");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 1;<BR>&nbsp;&nbsp; }<BR>&nbsp;&nbsp; getftime(fileno(stream), &amp;ft);<BR>&nbsp;&nbsp; printf("File time: %u:%u:%u\n",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ft.ft_hour,ft.ft_min,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ft.ft_tsec *2);<BR>&nbsp;&nbsp; printf("File date: %u/%u/%u\n",<BR>&nbsp;&nbsp; ft.ft_month, ft.ft_day,<BR>&nbsp;&nbsp; ft.ft_year+1980);<BR>&nbsp;&nbsp; fclose(stream);<BR>&nbsp;&nbsp; return 0;<BR>}<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<P>函数名: getgraphmode<BR>功&nbsp; 能: 返回当前图形模式<BR>用&nbsp; 法: int far getgraphmode(void);<BR>程序例:<P>#include &lt;graphics.h><BR>#include &lt;stdlib.h><BR>#include &lt;stdio.h><BR>#include &lt;conio.h><P>int main(void)<BR>{<BR>/* request auto detection */<BR>&nbsp;&nbsp; int gdriver = DETECT, gmode, errorcode;<BR>&nbsp;&nbsp; int midx, midy, mode;<BR>&nbsp;&nbsp; char numname[80], modename[80];<P>/* initialize graphics and local variables */<BR>&nbsp;&nbsp; initgraph(&amp;gdriver, &amp;gmode, "");<P>/* read result of initialization */<BR>&nbsp;&nbsp; errorcode = graphresult();<BR>/* an error occurred */<BR>&nbsp;&nbsp; if (errorcode != grOk)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Graphics error: %s\n",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;grapherrormsg(errorcode));<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Press any key to halt:");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getch();<BR>/* terminate with an error code */<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1);<BR>&nbsp;&nbsp; }<P>&nbsp;&nbsp; midx = getmaxx() / 2;<BR>&nbsp;&nbsp; midy = getmaxy() / 2;<P>/* get mode number and name strings */<BR>&nbsp;&nbsp; mode = getgraphmode();<BR>&nbsp;&nbsp; sprintf(numname,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "%d isthe current mode number.",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mode);<BR>&nbsp;&nbsp; sprintf(modename,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "%s isthe current graphics mode",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getmodename(mode));<P>/* display the information */<BR>&nbsp;&nbsp; settextjustify(CENTER_TEXT, CENTER_TEXT);<BR>&nbsp;&nbsp; outtextxy(midx, midy, numname);<BR>&nbsp;&nbsp; outtextxy(midx, midy+2*textheight("W"),<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;modename);<P>/* clean up */<BR>&nbsp;&nbsp; getch();<BR>&nbsp;&nbsp; closegraph();<BR>&nbsp;&nbsp; return 0;<BR>}<BR>&nbsp;<BR>&nbsp;<P>函数名: getftime<BR>功&nbsp; 能: 取文件日期和时间<BR>用&nbsp; 法: int getftime(int handle, struct ftime *ftimep);<BR>程序例:<P>#include &lt;stdio.h><BR>#include &lt;io.h><P>int main(void)<BR>{<BR>&nbsp;&nbsp; FILE *stream;<BR>&nbsp;&nbsp; struct ftime ft;<P>&nbsp;&nbsp; if ((stream = fopen("TEST.$$$",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "wt")) == NULL)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fprintf(stderr,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"Cannot open output file.\n");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 1;<BR>&nbsp;&nbsp; }<BR>&nbsp;&nbsp; getftime(fileno(stream), &amp;ft);<BR>&nbsp;&nbsp; printf("File time: %u:%u:%u\n",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ft.ft_hour,ft.ft_min,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ft.ft_tsec *2);<BR>&nbsp;&nbsp; printf("File date: %u/%u/%u\n",<BR>&nbsp;&nbsp; ft.ft_month, ft.ft_day,<BR>&nbsp;&nbsp; ft.ft_year+1980);<BR>&nbsp;&nbsp; fclose(stream);<BR>&nbsp;&nbsp; return 0;<BR>}<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<P>函数名: getgraphmode<BR>功&nbsp; 能: 返回当前图形模式<BR>用&nbsp; 法: int far getgraphmode(void);<BR>程序例:<P>#include &lt;graphics.h><BR>#include &lt;stdlib.h><BR>#include &lt;stdio.h><BR>#include &lt;conio.h><P>int main(void)<BR>{<BR>/* request auto detection */<BR>&nbsp;&nbsp; int gdriver = DETECT, gmode, errorcode;<BR>&nbsp;&nbsp; int midx, midy, mode;<BR>&nbsp;&nbsp; char numname[80], modename[80];<P>/* initialize graphics and local variables */<BR>&nbsp;&nbsp; initgraph(&amp;gdriver, &amp;gmode, "");<P>/* read result of initialization */<BR>&nbsp;&nbsp; errorcode = graphresult();<BR>/* an error occurred */<BR>&nbsp;&nbsp; if (errorcode != grOk)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Graphics error: %s\n",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;grapherrormsg(errorcode));<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Press any key to halt:");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getch();<BR>/* terminate with an error code */<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1);<BR>&nbsp;&nbsp; }<P>&nbsp;&nbsp; midx = getmaxx() / 2;<BR>&nbsp;&nbsp; midy = getmaxy() / 2;<P>/* get mode number and name strings */<BR>&nbsp;&nbsp; mode = getgraphmode();<BR>&nbsp;&nbsp; sprintf(numname,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "%d isthe current mode number.",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mode);<BR>&nbsp;&nbsp; sprintf(modename,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "%s isthe current graphics mode",<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getmodename(mode));<P>/* display the information */<BR>&nbsp;&nbsp; settextjustify(CENTER_TEXT, CENTER_TEXT);<BR>&nbsp;&nbsp; outtextxy(midx, midy, numname);<BR>&nbsp;&nbsp; outtextxy(midx, midy+2*textheight("W"),<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;modename);<P>/* clean up */<BR>&nbsp;&nbsp; getch();<BR>&nbsp;&nbsp; closegraph();<BR>&nbsp;&nbsp; return 0;<BR>}<BR>&nbsp;<BR>&nbsp;<P>函数名: getimage<BR>功&nbsp; 能: 将指定区域的一个位图存到主存中<BR>用&nbsp; 法: void far getimage(int left, int top, int right, int bottom,<BR>&nbsp;&nbsp;&nbsp;&nbsp; void far *bitmap);<BR>程序例:<P>#include &lt;graphics.h><BR>#include &lt;stdlib.h><BR>#include &lt;stdio.h><BR>#include &lt;conio.h><BR>#include &lt;alloc.h><P>void save_screen(void far *buf[4]);<BR>void restore_screen(void far *buf[4]);<P>int maxx, maxy;<P>int main(void)<BR>{<BR>&nbsp;&nbsp; int gdriver=DETECT, gmode, errorcode;<BR>&nbsp;&nbsp; void far *ptr[4];<P>&nbsp;&nbsp; /* auto-detect the graphics driver and mode */<BR>&nbsp;&nbsp; initgraph(&amp;gdriver, &amp;gmode, "");<BR>&nbsp;&nbsp; errorcode = graphresult(); /* check for any errors */<BR>&nbsp;&nbsp; if (errorcode != grOk)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Graphics error: %s\n", grapherrormsg(errorcode));<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Press any key to halt:");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getch();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1);<BR>&nbsp;&nbsp; }<BR>&nbsp;&nbsp; maxx = getmaxx();<BR>&nbsp;&nbsp; maxy = getmaxy();<P>&nbsp;&nbsp; /* draw an image on the screen */<BR>&nbsp;&nbsp; rectangle(0, 0, maxx, maxy);<BR>&nbsp;&nbsp; line(0, 0, maxx, maxy);<BR>&nbsp;&nbsp; line(0, maxy, maxx, 0);<P>&nbsp;&nbsp; save_screen(ptr);&nbsp;&nbsp;&nbsp; /* save the currentscreen */<BR>&nbsp;&nbsp; getch();&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* pause screen */<BR>&nbsp;&nbsp; cleardevice();&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /*clear screen */<BR>&nbsp;&nbsp; restore_screen(ptr); /* restore the screen */<BR>&nbsp;&nbsp; getch();&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* pause screen */<P>&nbsp;&nbsp; closegraph();<BR>&nbsp;&nbsp; return 0;<BR>}<P>void save_screen(void far *buf[4])<BR>{<BR>&nbsp;&nbsp; unsigned size;<BR>&nbsp;&nbsp; int ystart=0, yend, yincr, block;<P>&nbsp;&nbsp; yincr = (maxy+1) / 4;<BR>&nbsp;&nbsp; yend = yincr;<BR>&nbsp;&nbsp; size = imagesize(0, ystart, maxx, yend); /* get byte sizeof image */<P>&nbsp;&nbsp; for (block=0; block&lt;=3; block++)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if ((buf[block] = farmalloc(size)) ==NULL)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; closegraph();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Error: notenough heap space in save_screen().\n");<BR>&nbsp; exit(1);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getimage(0, ystart, maxx, yend, buf[block]);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ystart = yend + 1;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; yend += yincr + 1;<BR>&nbsp;&nbsp; }<BR>}<P>void save_screen(void far *buf[4])<BR>{<BR>&nbsp;&nbsp; unsigned size;<BR>&nbsp;&nbsp; int ystart=0, yend, yincr, block;<P>&nbsp;&nbsp; yincr = (maxy+1) / 4;<BR>&nbsp;&nbsp; yend = yincr;<BR>&nbsp;&nbsp; size = imagesize(0, ystart, maxx, yend); /* get byte sizeof image */<P>&nbsp;&nbsp; for (block=0; block&lt;=3; block++)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if ((buf[block] = farmalloc(size)) ==NULL)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; closegraph();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("Error: notenough heap space in save_screen().\n");<BR>&nbsp; exit(1);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getimage(0, ystart, maxx, yend, buf[block]);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ystart = yend + 1;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; yend += yincr + 1;<BR>&nbsp;&nbsp; }<BR>}<P>void restore_screen(void far *buf[4])<BR>{<BR>&nbsp;&nbsp; int ystart=0, yend, yincr, block;<P>&nbsp;&nbsp; yincr = (maxy+1) / 4;<BR>&nbsp;&nbsp; yend = yincr;<P>&nbsp;&nbsp; for (block=0; block&lt;=3; block++)<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; putimage(0, ystart, buf[block], COPY_PUT);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; farfree(buf[block]);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ystart = yend + 1;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; yend += yincr + 1;<BR>&nbsp;&nbsp; }<BR>}<BR>&nbsp;<BR>&nbsp;<P>函数名: getlinesettings<BR>功&nbsp; 能: 取当前线型、模式和宽度<BR>用&nbsp; 法: void far getlinesettings(struct linesettingstype far *lininfo):<BR>程序例:

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