user-0 提问: c语言初学，结构体问题

回复:
user: user-1
content: #include <stdio.h> struct Worker {    //职工     int   num     ;//职工号     char  name[20];//姓名     char  sex     ;//性别     int   age     ;//年龄     int   years   ;//工龄     float salary  ;//工资     char  addr[20];//地址 }; int main() {     struct Worker a[3];     int i;     printf("\n请输入"         "职工号" ","         "姓名"   ","         "性别"   ","         "年龄"   ","         "工龄"   ","         "工资"   ","         "地址"   "\n"     );     for (i=0;i<3;i++) {         if (7!=scanf(             "%d,"             "%19[^,],"             "%c,"             "%d,"             "%d,"             "%f,"             "%19[^\n]"             ,&a[i].num             , a[i].name             ,&a[i].sex             ,&a[i].age             ,&a[i].years             ,&a[i].salary             , a[i].addr)) {                 i--;                 printf("格式错误！\n");                 rewind(stdin);             }     }     printf("\n"         "职工号" ","         "姓名"   ","         "性别"   ","         "年龄"   ","         "工龄"   ","         "工资"   ","         "地址"   "\n"     );     for (i=0;i<3;i++) {         printf(             "%d" ","             "%s" ","             "%c" ","             "%d" ","             "%d" ","             "%g" ","             "%s" "\n"             , a[i].num             , a[i].name             , a[i].sex             , a[i].age             , a[i].years             , a[i].salary             , a[i].addr);     }     return 0; }

user: user-1
content: 请判断scanf函数的返回值。

user: user-2
content: 这样呢：   #include <stdio.h> int main() { 	struct Worker 	{ 		int num; 		char name[20]; 		char sex; 		int age; 		int years; 		float salary; 		char addr[20]; 	}; 	struct Worker a[3]; 	int i; 	printf ("\n 请输入职工号，姓名，性别，年龄，工龄，工资，地址\n"); 	for (i=0;i<3;i++) 		scanf("%d\n%s\n%c\n%d\n%d\n%f\n%s\n",&a[i].num,a[i].name,&a[i].sex,&a[i].age,&a[i].years,&a[i].salary,a[i].addr); 	printf ("\n职工号，姓名，性别，年龄，工龄，工资，地址\n"); 	for (i=0;i<3;i++) 		printf("%6d %10s %6c %4d %4d %7.2f %10s\n",a[i].num,a[i].name,a[i].sex,a[i].age,a[i].years,a[i].salary,a[i].addr) ; 	return 0; }

user: user-0
content: 对啊   就是用修改过的运行还不对 是我输入数据方式的问题么

user: user-2
content: 引用 2 楼 xwdshiwo 的回复:为什么我运行了是这样的呢  请输入职工号，姓名，性别，年龄，工龄，工资，地址 2 nan n 2 2 2 add  职工号，姓名，性别，年龄，工龄，工资，地址      2        nan           0 3954064    0.00          ?      2          2           2    0    0.00     58                    -1   58    0.00            -------------------------------- Process exited after 11.63 seconds with return value 0 请按任意键继续. . .  用getchar接收了换行符

user: user-0
content: 为什么我运行了是这样的呢  请输入职工号，姓名，性别，年龄，工龄，工资，地址 2 nan n 2 2 2 add  职工号，姓名，性别，年龄，工龄，工资，地址      2        nan           0 3954064    0.00          ?      2          2           2    0    0.00     58                    -1   58    0.00            -------------------------------- Process exited after 11.63 seconds with return value 0 请按任意键继续. . .

user: user-2
content: #include <stdio.h> int main() { 	struct Worker 	{ 		int num; 		char name[20]; 		char sex; 		int age; 		int years; 		float salary; 		char addr[20]; 	}; 	struct Worker a[3]; 	int i; 	printf ("\n 请输入职工号，姓名，性别，年龄，工龄，工资，地址\n"); 	for (i=0;i<3;i++) 	{ 		scanf("%d%s%c%d%d%f%s",&a[i].num,a[i].name,&a[i].sex,&a[i].age,&a[i].years,&a[i].salary,a[i].addr); 		getchar(); 	} 	printf ("\n职工号，姓名，性别，年龄，工龄，工资，地址\n"); 	for (i=0;i<3;i++) 		printf("%6d %10s %6c %4d %4d %7.2f %10s\n",a[i].num,a[i].name,a[i].sex,a[i].age,a[i].years,a[i].salary,a[i].addr) ; 	return 0; }   用getchar接收了换行符

user: user-1
content: 另外请检查scanf的返回值。 //请今后要用 int c; scanf("%c",&c); //时，都改为 char s[2]; int c; scanf("%1s",s); c=s[0];  每天将下面的文字的意思揣摩三遍： Format Specification Fields: scanf and wscanf Functions A format specification has the following form:  % [width] [{h | l | I64 | L}]type  The format argument specifies the interpretation of the input and can contain one or more of the following:   White-space characters: blank (' '); tab ('\t'); or newline ('\n'). A white-space character causes scanf to read, but not store, all consecutive white-space characters in the input up to the next non–white-space character. One white-space character in the format matches any number (including 0) and combination of white-space characters in the input.   Non–white-space characters, except for the percent sign (%). A non–white-space character causes scanf to read, but not store, a matching non–white-space character. If the next character in stdin does not match, scanf terminates.   Format specifications, introduced by the percent sign (%). A format specification causes scanf to read and convert characters in the input into values of a specified type. The value is assigned to an argument in the argument list.  The format is read from left to right. Characters outside format specifications are expected to match the sequence of characters in stdin; the matching characters in stdin are scanned but not stored. If a character in stdin conflicts with the format specification, scanf terminates, and the character is left in stdin as if it had not been read.  When the first format specification is encountered, the value of the first input field is converted according to this specification and stored in the location that is specified by the first argument. The second format specification causes the second input field to be converted and stored in the second argument, and so on through the end of the format string.  An input field is defined as all characters up to the first white-space character (space, tab, or newline), or up to the first character that cannot be converted according to the format specification, or until the field width (if specified) is reached. If there are too many arguments for the given specifications, the extra arguments are evaluated but ignored. The results are unpredictable if there are not enough arguments for the format specification.  Each field of the format specification is a single character or a number signifying a particular format option. The type character, which appears after the last optional format field, determines whether the input field is interpreted as a character, a string, or a number.   The simplest format specification contains only the percent sign and a type character (for example, %s). If a percent sign (%) is followed by a character that has no meaning as a format-control character, that character and the following characters (up to the next percent sign) are treated as an ordinary sequence of characters, that is, a sequence of characters that must match the input. For example, to specify that a percent-sign character is to be input, use %%.  An asterisk (*) following the percent sign suppresses assignment of the next input field, which is interpreted as a field of the specified type. The field is scanned but not stored.

user: user-3
content: 反复试了下。  觉得是char sex 占的字节不对。  char sex[2];   后面输入的时候 也把&去掉。   编译运行  没发现问题

user: user-0
content: 但是有一点不太明白 为什么scanf正常输入会读不到呢，先输入整形num，然后输入的姓名字符串没法正确赋值给结构体的name么

user: user-0
content: ok 已经明白啦 谢谢大家