while (filename[size] != '\\' && size > 0) 语句的意思
时间: 2024-06-03 08:08:30 浏览: 6
&& filename[size] != '/'
&& size > 0){
size--;
}
if (size == 0){
return "";
}
else{
return filename.substr(size+1);
}
This code snippet takes a filename as input and returns only the file name (without any directory path). It does this by iterating through the characters in the filename from the end towards the beginning, searching for the last occurrence of either a backslash (\) or a forward slash (/) character. Once it finds this character, it returns the substring of the filename starting from the character immediately after the slash, which represents only the file name.
For example, if the input filename is "C:\Users\JohnDoe\Documents\example.txt", the function will return "example.txt".
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