目标串：s = "abcabcdababcdabcdabde"匹配串：t = "abcdabd"1、求出匹配串的next数组2、写出每一趟匹配的具体情况（失配时要表现出如何修改，成功匹配返回初始位置）
示例:s1 = "abcabcda"t1 = "abcda"第一步：t1的next数组为：abcda00001第二步：具体匹配情况第一趟：s0/t0s1 = "abcabcda"t1 = "abcd"失配，找到此时next[lbk]j-1[rbk]值为c->0，跳过字符数为0，移动位数为3-0=3此时i = 3,j = 0第二趟：s3/t0s1 = "abcabcda"t1 = " abcd"匹配成功，返回初始值i-j =7-4=3
示例:s1 = "abcabcda"t1 = "abcda"第一步：t1的next数组为：abcda00001第二步：具体匹配情况第一趟：s0/t0s1 = "abcabcda"t1 = "abcd"失配，找到此时next[lbk]j-1[rbk]值为c->0，跳过字符数为0，移动位数为3-0=3此时i = 3,j = 0第二趟：s3/t0s1 = "abcabcda"t1 = " abcd"匹配成功，返回初始值i-j =7-4=3
