比如说“C:\Program Files\360\360Safe” 截取后只获得 360safe
å¯ä½¿ç¨Splitå½æ°æ¥å®ç°æªåè·¯å¾æåä¸ä¸ª"\"åçå符ã
Splitå½æ°ï¼è¿åä¸ä¸ªä¸æ ä»é¶å¼å§çä¸ç»´æ°ç»ï¼å®å å«æå®æ°ç®çåå符串ã
å ·ä½ä»£ç å¦ä¸ï¼