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10.str_replace×Ö·ûÌæ»»±ÈÕýÔòÌæ»»preg_replace¿ì£¬µ«strtr±Èstr_replaceÓÖ¿ì1/4;
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22.ÔÚ×ÓÀàÀï·½·¨µÄÐÔÄÜÓÅÓÚÔÚ»ùÀàÖÐ;//PHP100ÖÐÎÄÍø
23.Ö»µ÷ÓÃÒ»¸ö²ÎÊý²¢ÇÒº¯ÊýÌåΪ¿ÕµÄº¯ÊýÔËÐл¨·ÑµÄʱ¼äµÈÓÚ7-8´Î$localvar++ÔËË㣬¶øÒ»¸öÀàËÆµÄ·½·¨(ÀàÀïµÄº¯Êý)ÔËÐеÈÓÚ´óÔ¼15´Î$localvar++ÔËËã;
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