顺序结构程序设计练习题（Sequential structure programming exercises）.docVIP

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顺序结构程序设计练习题（Sequential structure programming exercises）.doc

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顺序结构程序设计练习题（Sequential structure programming exercises） The 1.putchar function can output one () to the terminal A. integer variable expression value B. real type variable value C. string D. character or character variable value The output results of the program is below 2. () (Note: - representative spaces) Main () {printf (\n*s1=%15s*, ChinaBeijing); Printf (\n*s2=%-5s*, Chi);} A.*s1=chinabeijing - racy * *s2=**chi* B.*s1=chinabeijing - racy - * * *s2=chi C.*s1=* - chinabeijing* *s2= - chi* D.*s1= chinabeijing* *s2=chi - racy - * The 3.printf function uses the format%5s, where the number 5 indicates that the output string takes 5 columns. If the string length is greater than 5, the output is in the same way (); if the string length is less than 5, the output is in the manner () A. outputs the string from the left, with the right space B. output from left to right according to the length of the original character C. right justified the output of the string, the left complement space D. output error message Both 4.x and y are defined as type int, and Z is defined as double . The following illegal scanf function call statements are () A.scanf (%d%s,%1e, x, y, z); B.scanf (%2d*%d%f, x, y, z); C.scanf (%x%d*%o, x, y); D.scanf (%x%o%6.2f, x, y, z); 5. the following definitions and the input sentence, if the requirements of A1, A2, C1, C2 = 10,20, A and B, when the input data from the first column, data input mode is correct () (Note: - spaces, CR said.) Int, A1, A2; char, C1; C2; scanf (%d%c%d%c, a, c1, a2, c2); A.10A - 20BCR B.10 - A - 20 - BCR C.10A20BCR D.10A20 - BCR 6. int x float y has been defined;; and the implementation of scanf (%3d%f, x, y); the statement is to input data 12345 - 678 enter from the first column, then x is (1) y (2) value (1) A.12345, B.123, C.45, D.345 (2) A. indefinite value B.45.000000, C.678.000000, D.123.000000; 7. the following definitions and the input sentence, if the requirements of A1, A2, C1, C2 = 10,20, A and B, when the input data