C语言上机实验答案

;\rvoid main()\r{ FILE *fp;\rchar str[100];\rint i;\rif((fp=fopen(/,test7%w,,))==NULL)\r{ printf(wCannot open the file.'n");\rexit(O);\r)\rprintf(/zlnput a string:");\rgets(str); /*gX52YZ*/\rfor(i=0;str[i]&amp;&amp;i&lt;100;i++) /* …†5./‡\r2Y*/{ if(str[i]&gt;= &amp;&amp;str[i]&lt;= 'z' )/*‰Š[\2\r]*/\rstr[i]-=32; /*D[\2]`a‹b\2]*/\rfputc(str[i],fp); /*D`af/2Y\XGI*/}\rfclose(fp); /* ŽGI */\rfp=fopen( “ t est " %" r" ); /*g?‘’GHGI*/\rfgets(str,100,fp); /*UGI.gX52YZ*/\rprintff <<%s\ nw ,str);.\rfclose(fp);\r)