为什么打不出来数据呢
#include <stdio.h>#include <string.h>
#define MAXSTR 100
int income_lev, year; // to record which year and income level does user choice//
int country_num = 0, data_num = 0;
struct Country
{
char country_name;
char income_level;
char region;
struct Data
{
char year;
char percent;
} data;
} country;
void user_choice()// let user to choose the year and income level they want//
{
printf("Please enter a year which you want to search:\n");
scanf("%d", &year);
printf("Please enter an income level which you want to search\n\
1 corresponds to 'low income'\n\
2 corresponds to 'lower middle income'\n\
3 corresponds to 'upper middle income'\n\
4 corresponds to 'high income'\n");
scanf("%d", &income_lev);
}
void record_data(char line)
{
int i;
for(i=0; i<51; i++)
{
country.country_name = line;
}
for(i=51; i<58; i++)
{
country.income_level = line;
}
for(i=59; i<62; i++)
{
country.data.percent = line;
}
for(i=62; i<87; i++)
{
country.region = line;
}
for(i=88; i<92; i++)
{
country.data.year = line;
}
if (strcmp(country.country_name, country.country_name) != 0 || country_num == 0)
{
country_num += 1;
data_num = 0;
//printf("C:%d\n",country_num);
}
else
{
data_num += 1;
//printf("D:%d\n",data_num);
}
}
int main ()
{
FILE *fp;
char str;
int i=1;
fp = fopen("measles.txt" , "r");
if(fp == NULL)
{
perror("Error opening file");
return(-1);
}
while( fgets (str, MAXSTR, fp)!=NULL )
{
//printf("%s", str);
record_data(str);
}
fclose(fp);
//user_choice();
/*for(i=0; i<200; i++)
{
puts(country.country_name);
puts(country.region);
puts(country.income_level);
puts(country.data.year);
puts(country.data.percent);
}*/
for(i=0; i<33; i++)
{
printf("%s %s\n", country.data.year, country.data.percent);
}
return(0);
}
#include <stdio.h>
#include <string.h>
#define MAXSTR 100
int income_lev, year; // to record which year and income level does user choice//
int country_num = 0, data_num = 0;
struct Country
{
char country_name;
char income_level;
char region;
struct Data
{
char year;
char percent;
} data;
} country;
void user_choice()// let user to choose the year and income level they want//
{
printf("Please enter a year which you want to search:\n");
scanf("%d", &year);
printf("Please enter an income level which you want to search\n\
1 corresponds to 'low income'\n\
2 corresponds to 'lower middle income'\n\
3 corresponds to 'upper middle income'\n\
4 corresponds to 'high income'\n");
scanf("%d", &income_lev);
}
void record_data(char line)
{
int i;
for(i=0; i<51; i++)
{
country.country_name = line;
}
for(i=51; i<58; i++)
{
country.income_level = line;
}
for(i=59; i<62; i++)
{
country.data.percent = line;
}
for(i=62; i<87; i++)
{
country.region = line;
}
for(i=88; i<92; i++)
{
country.data.year = line;
}
if (strcmp(country.country_name, country.country_name) != 0 || country_num == 0)
{
country_num += 1;
data_num = 0;
//printf("C:%d\n",country_num);
}
else
{
data_num += 1;
//printf("D:%d\n",data_num);
}
}
int main ()
{
FILE *fp;
char str;
int i=1;
fp = fopen("measles.txt" , "r");
if(fp == NULL)
{
perror("Error opening file");
return(-1);
}
while( fgets (str, MAXSTR, fp)!=NULL )
{
//printf("%s", str);
record_data(str);
}
fclose(fp);
//user_choice();
/*for(i=0; i<200; i++)
{
puts(country.country_name);
puts(country.region);
puts(country.income_level);
puts(country.data.year);
puts(country.data.percent);
}*/
for(i=0; i<33; i++)
{
printf("%s %s\n", country.data.year, country.data.percent);
}
return(0);
}
651519611 发表于 2020-11-28 22:09
第 77 行：fp = fopen(measles.txt,"r");// 文件名不能作为参数, 并且 measles.txt 的文件路径要正确
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