c - C编译时出现错误 "error: stray '\34 2' "、 "stray '\20 0' "、 "stray '\23 4' "

Question

这个问题已经有答案了:

Compilation error: stray ‘\302’ in program, etc (12 个回答)

已关闭 4 个月前。

我用了Notepad++编写代码，当我尝试编译它时(我使用 cc lab7.c -o test1 来编译它)，我得到了一堆杂散\342、杂散\200、杂散\234 错误，如下所示。

这是我的代码:

#include <stdio.h>
#include <string.h>


char inbase, dummy, outbase;
char response;
int inputNum;
char bin [32];

int main(void)
{
    // Perform for yes response
    while (response == 'y' || response == 'Y')
    {
        // Prompt to read in char for base of input
        printf("Enter a base to read in (b for binary, d for decimal,\n h for hexidecimal, or o for octal: ");
        scanf("%c", &inbase);

        // If binary is inbase
        if (inbase == 'b' || inbase == 'B')
        {
            printf("Enter a binary number to read: ");
            scanf("%c", &dummy);
            scanf("%s", bin);
            inputNum = binary(bin);
        }

        // If inbase is anything else, read
        else
        {
            printf("Enter an integer to read: ");
            scanf("%c", &dummy);
            scanf("%i", &inputNum);
        }

        // Output the number

        printf("Enter a base to output as: ");
        scanf("%c", &dummy);
        scanf("%c", &outbase);

        // decimal output
        if (outbase == 'd' || outbase == 'D')
        {
            printf("The integer %i in decimal is %d" inputNum, inputNum);
        }

        // hexidecimal output
        if (outbase == 'h' || outbase == 'H')
        {
            printf("The integer %i in hexidecimal is %h" inputNum, inputNum);
        }

        // octal output
        if (outbase == 'o' || outbase == 'O')
        {
            printf("The integer %i in octal is %o" inputNum, inputNum);
        }

        // check to see if user wants to run again
        printf(“Do you want to …”);
        scanf(“%c”, &dummy);
        scanf(“%c”, &response);
        scanf(“%c”, &dummy);
    }

    int binary(char* inString)
    {
        int sum=0;
        int i;

        for (i=0; i < strlen(inString); i++)
        {
            sum = sum * 2 + (inString[i] - 48);
        }

        return sum;
    }

    return 0;
}

// END OF CODE

这是我收到的错误消息:

lab7.c: In function ‘main’:

lab7.c:58:45: error: expected ‘)’ before ‘inputNum’
printf("The integer %i in decimal is %d" inputNum, inputNum);
                                         ^

lab7.c:64:49: error: expected ‘)’ before ‘inputNum’
printf("The integer %i in hexidecimal is %h" inputNum, inputNum);
                                             ^

lab7.c:70:43: error: expected ‘)’ before ‘inputNum’
printf("The integer %i in octal is %o" inputNum, inputNum);
                                       ^

lab7.c:74:3: error: stray ‘\342’ in program
printf(“Do you want to …”);
^

lab7.c:74:3: error: stray ‘\200’ in program

lab7.c:74:3: error: stray ‘\234’ in program

lab7.c:74:14: error: ‘Do’ undeclared (first use in this function)
printf(“Do you want to …”);
         ^

lab7.c:74:14: note: each undeclared identifier is reported only once for                    each function it appears in

lab7.c:74:17: error: expected ‘)’ before ‘you’
printf(“Do you want to …”);
            ^

lab7.c:74:17: error: stray ‘\342’ in program

lab7.c:74:17: error: stray ‘\200’ in program

lab7.c:74:17: error: stray ‘\246’ in program

lab7.c:74:17: error: stray ‘\342’ in program

lab7.c:74:17: error: stray ‘\200’ in program

lab7.c:74:17: error: stray ‘\235’ in program

lab7.c:75:3: error: stray ‘\342’ in program
scanf(“%c”, &dummy);
^

lab7.c:75:3: error: stray ‘\200’ in program

lab7.c:75:3: error: stray ‘\234’ in program

lab7.c:75:13: error: expected expression before ‘%’ token
scanf(“%c”, &dummy);
         ^

lab7.c:75:13: error: stray ‘\342’ in program

lab7.c:75:13: error: stray ‘\200’ in program

lab7.c:75:13: error: stray ‘\235’ in program

lab7.c:76:3: error: stray ‘\342’ in program
scanf(“%c”, &response);
^

lab7.c:76:3: error: stray ‘\200’ in program

lab7.c:76:3: error: stray ‘\234’ in program

lab7.c:76:13: error: expected expression before ‘%’ token
scanf(“%c”, &response);
         ^

lab7.c:76:13: error: stray ‘\342’ in program

lab7.c:76:13: error: stray ‘\200’ in program

lab7.c:76:13: error: stray ‘\235’ in program

lab7.c:77:3: error: stray ‘\342’ in program
scanf(“%c”, &dummy);
^

lab7.c:77:3: error: stray ‘\200’ in program

lab7.c:77:3: error: stray ‘\234’ in program

lab7.c:77:13: error: expected expression before ‘%’ token
scanf(“%c”, &dummy);
         ^

lab7.c:77:13: error: stray ‘\342’ in program

lab7.c:77:13: error: stray ‘\200’ in program

lab7.c:77:13: error: stray ‘\235’ in program

Answer 1

您的代码存在几个问题:

lab7.c:58:45: error: expected ‘)’ before ‘inputNum’
printf("The integer %i in decimal is %d" inputNum, inputNum);
                                         ^

您在指定位置之前以及后面的几行类似的行中缺少逗号。

printf (“Do you want to …”);
        ^                ^

我所指出的位置中的引号都是“智能引号”(“/”)，而不是普通引号。重新输入它们。

同样的问题也适用于以下有关“%c”的每个错误。