47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#include<stdio.h>
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int count_total() //从文件中获取链表，返回链表中结构体的数目
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{
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FILE *con;
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extern char FILENAME[20];
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con=fopen(FILENAME,"rb");
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int total=0;
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struct Contact* p;
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p=(struct Contact*)malloc(LEN);
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while(fread(p,LEN,1,con)==1)
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{
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total+=1;
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}
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fclose(con);
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return total;
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}
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int count_male() //从文件中获取链表，返回链表中成员gender为"Male"的结构体的数目
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{
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FILE *con;
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extern char FILENAME[20];
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con=fopen(FILENAME,"rb");
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int male=0;
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struct Contact* p;
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p=(struct Contact*)malloc(LEN);
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while(fread(p,LEN,1,con)==1)
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{
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if(strcmp(p->gender,"Male")==0)male+=1;
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}
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fclose(con);
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return male;
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}
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void print_total() //以表格的形式打印出文件中结构体的信息
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{
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int total=count_total(),male=count_male();
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printf(" ___________________\n");
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printf("|%-10s|%8d|\n","总数",total);
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printf("|%-10s|%8d|\n","女性",total-male);
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printf("|%-10s|%8d|\n","男性",male);
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printf("|__________|________|\n\n");
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char t[5];
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printf("Press enter to continue...\n");
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gets(t);
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}
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