下面函数统计子串substr在str中出现的次数。请填空使程序完整、正确。 int count(char *str, char *substr) { int i, j, k, num = 0; for (i = 0; (1____); i++; for ((2____), k = 0; subs tr[k] == str[j]; k++, j++)) if (substr[(3____)] == '\0') { num++; break; } return (num); }
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举一反三
【单选题】What’s the purpose of the assessment?
A.
For selection
B.
Making an overall judgment about one’s work or a whole school’s work