self->headImgArr = [[NSMutableArray alloc]init];
for (int i = 0; i < self->myStuArr.count; i++) {
StudnetList *stu = self->myStuArr[i];
if (stu.headImg.length == 0) {
stu.headImg = @"";
}
[self->headImgArr addObject:stu.headImg];
}
self->headImgArr = [[NSMutableArray alloc]init];
for (int i = 0; i < self->myStuArr.count; i++) {
StudnetList *stu = self->myStuArr[i];
if (stu.headImg.length == 0) {
stu.headImg = @"";
}
[self->headImgArr addObject:stu.headImg];
}