Description: Start with the keyboard input of a text file name (convention: the number of characters to ≤ 127 bytes, and can contain the path) and a string (convention: the number of characters ≤ 20 bytes, which contain spaces, TAB, followed by call Str), the contents of the file is displayed on the screen. Requests display content on the screen the number of rows of the output file (the line between ' \ n' separated, each line has a variable length but ≤ 200 bytes) string Str file a (find the line number and the last line number is not case-sensitive, cross-bank does not find, If you do not find the line number is displayed as-1).
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P3-315.C
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