In notepad in D: \ text folder to create a ten lines, each line is not less than ten characters in a text file, and save the programming in accordance with the read data and processing methods: starting from the document center in turn backwards read characters and characters on the screen, a read to the starting position of the document, and statistical output respectively among them between the 'h' - 'n'
The number of each letter a,
2. Market data analyst is responsible, to investigate the same vegetables in different market price of the day, the first ten vegetable market is obtained by investigation of two kinds of vegetables on the day of the corresponding price data, please read the price data programming, (1) each species will be ordered every varieties of vegetables price from low to high output (2) calculate the average price each vegetable, calculate the output of each vegetable in different market price deviation, average price and output from the recent prices of vegetables,