2020. 3. 4. 18:28ㆍ카테고리 없음
Make the changes, then compile and run the program to make sure it works. Note that scanf uses the same sort of format string as printf (type man scanf for more info). Also note the & in front of a and b. This is the address operator in C: It returns the address of the variable (this will not make sense until we discuss pointers). You must use the & operator in scanf on any variable of type char, int, or float, as well as structure types (which we will get to shortly). If you leave out the & operator, you will get an error when you run the program.
Try it so that you can see what that sort of run-time error looks like.Let's look at some variations to understand printf completely. Here is the simplest printf statement. Printf('%d +%d =%dn', a, b, c);In the printf statement, it is extremely important that the number of operators in the format string corresponds exactly with the number and type of the variables following it.
For example, if the format string contains three%d operators, then it must be followed by exactly three parameters and they must have the same types in the same order as those specified by the operators.You can print all of the normal C types with printf by using different placeholders.
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Print Smiling Face on Screen in CTo print smiling face on the screen in programming, first you have to ask from the user that how many smiling face he/she want toprint on the output screen to print required number of smiling face on the screen.So to print smiling face on the screen, use the ASCII valueof smiling face, which is 1, first make asay sml of int type and initialize 1 to it. Now make a variablesay ch of type char and initialize sml to ch. After performing this, ch is now contains smiling face,now print the required number of smiling face on the screen as shown here in the following program. C Programming Code to Print Smiling Face on ScreenFollowing C program ask to the user that how many smiling face he or she want to print on the screen to print the required number of smilingface on the screen.