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Structure problem

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Post time: 2020-1-20 17:40:01
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I used the structure for the first time and wrote a program, which compiles and links normally. It ’s just that the result is different from the input. Something is added. After searching for a long time, I ca n’t figure out the problem there.
#include "stdio.h"
struct person {
char name [20];
char sex [20];
int age;
};
struct student {
int number;
int score;
    struct person roommate;
};
void main ()
{
int i;
    Struct student myroommate [4];
printf ("---------------- Three classes in the department of family planning ---------------------\n");
printf ("Please enter the student number, grade, name, gender, age of your dormitory member:\n");
printf ("----------- Note that the input parts are separated by ',' -----------\n");
for (i = 0; i <4; i ++)
{
scanf ("% d,% d,% s,% s,% d",
                         &myroommate [i] .number,
&myroommate [i] .score,
            &myroommatei] .roommate.name,
            &myroommatei] .roommate.sex,
&myroommate [i] .roommate.age);
}
printf ("Student number, grade, name, gender, and age of dormitory members are:\n");
for (i = 0; i <4; i ++)
{
printf ("% d,% d,% s,% s,% d\n",
                   myroommate [i] .number, myroommate [i] .score,
myroommate [i] .roommate.name,
                  myroommate [i] .roommate.sex,
                  myroommate [i] .roommate.age);
}
}
The output is a little garbled per line.
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Post time: 2020-1-30 08:45:01
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for (i = 0; i <4; i ++)
{
scanf ("% d,% d,% s,% s,% d",
                         &myroommate [i] .number,
&myroommate [i] .score,
            &myroommatei] .roommate.name,
            &myroommatei] .roommate.sex,
&myroommate [i] .roommate.age);
}
=====================
printf ("----------- Note that each part of the input is separated by a space -----------\n");
scanf ("% d% d% s% s% d",
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Post time: 2020-1-30 12:27:01
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scanf ("% d,% d,% s,% s,% d",
&myroommate [i] .number,
&myroommate [i] .score,
&myroommatei] .roommate.name,
&myroommatei] .roommate.sex,
&myroommate [i] .roommate.age);
}
===========================>
scanf ("% d,% d,% s,% s,% d",
&myroommate [i] .number,
&myroommate [i] .score,
myroommatei] .roommate.name, // No '&'
myroommatei] .roommate.sex, // No '&'
&myroommate [i] .roommate.age);
}
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 Invalid IP Address

Post time: 2020-1-30 15:45:02
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Upstairs solution% s is delimited by whitespace
scanf% s
             Matches a sequence of non-white-space characters;
             the next pointer must be a pointer to charac-
              ter array that is long enough to hold the input sequence and the terminating null character
              (’\0’), which is added automatically. The input string stops at white space or at the maximum
              field width, whichever occurs first.
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Post time: 2020-1-30 16:45:01
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scanf ("% d,% d,% s,% s,% d",
&myroommate [i] .number,
&myroommate [i] .score,
myroommate [i] .roommate.name, // no '&'
myroommate [i] .roommate.sex, // Without '&', what about the half bracket of i?
&myroommate [i] .roommate.age);
}
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 Invalid IP Address

Post time: 2020-1-30 22:54:01
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The problem is that the last 2 variables have not been assigned by scanf. Your input format is
1,1, aa, bb, 1
% d,% d,% s,% s,% d format aa, bb, 1 all assigned to the third, the last two are not assigned the initial value
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Post time: 2020-2-1 11:45:01
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myroommate [i] .roommate.name, // no '&'
myroommate [i] .roommate.sex, // No '&'
  I can't debug it too, sadly!
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Post time: 2020-2-1 21:54:01
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myroommate [i] .roommate.name, // no '&'
myroommate [i] .roommate.sex, // No '&'
=====================
It doesn't matter if there is&.

printf ("----------- Note that each part of the input is separated by a space -----------\n");
scanf ("% d% d% s% s% d",
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Post time: 2020-2-3 20:00:02
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% s ends with '\n' and spaces. Your ',' cannot be used to separate% s. . . The one upstairs told you very clearly, use printf ("----------- Note that each part of the input is separated by a space -----------\n");
scanf ("% d% d% s% s% d",
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 Author| Post time: 2020-2-4 16:15:01
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yctoyaThank you very much. Now the debugging is successful. As for the two left brackets, when I posted the source code for easy browsing, I took a lot of care to deal with it. I also thank other participants and removed two The case of '&' is also correct, but I don't know why?yctoyacan parse it
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