[英]How to print a string, which includes special characters and was read from a file? How to print it without special characters?
[英]How to read special characters from a text file?
我有一个带有一些特殊字符( \n
, \t
等)的文本文件。 问题是:无论如何打印一个新行或一个制表符,而不是只打印字符串\n
或\t
?
int main(){
char line[10];
FILE*file= fopen("file.txt", "r"); // txt content => "line 1 \n line 2 \n line 3"
if (file != NULL){
while (fgets(line, 10, file) != NULL)
printf("%s", line);
}
return 0;
}
称之为 function:
void cleanUp(char * line) {
int x;
int y = 0;
for (x = 0; x < strlen(line) - 1; x++) {
if (line[x] == '\\') {
if (line[x + 1] == 'n') {
line[y++] = '\n';
x = x + 2; /* if there is always a space after the \n otherwise x++ */
continue;
}
if (line[x + 1] == 't') {
line[y++] = '\t';
x = x + 2; /* if there is always a space after the \t otherwise x++ */
continue;
}
}
line[y++] = line[x];
}
line[y++] = '\n';
line[y] = '\0';
}
印刷线前。
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