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import java.util.regex.Matcher;
import java.util.regex.Pattern;
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public static List<String> getImgStr(String htmlStr){
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public static List removeDuplicate(List list) {
for ( int i = 0 ; i < list.size() - 1 ; i ++ ) {
for ( int j = list.size() - 1 ; j > i; j -- ) {
if (list.get(j).equals(list.get(i))) {
......