def find_all(im_source, im_search, maxcnt=<NUM_LIT:0>):
result = find_all_template(im_source, im_search, maxcnt=maxcnt)<EOL>if not result:<EOL><INDENT>result = find_all_sift(im_source, im_search, maxcnt=maxcnt)<EOL><DEDENT>if not result:<EOL><INDENT>return []<EOL><DEDENT>return [match["<STR_LIT:result>"] for match in result]<EOL>
优先Template，之后Sift
@ return [(x,y), ...]