How to convert floating-point numbers to strings in C language?

In C language, you can use the sprintf function to convert a floating-point number to a string. The specific steps are as follows:

1. Firstly, define a character array to store the converted string. For example, you can define an array of size 100:
2. Character string of size 100.
3. Next, convert the floating-point number to a string using the sprintf function. The prototype of the sprintf function is as follows:
4. The function sprintf formats and stores data in a string.
5. The first parameter is an array to store the converted string, the second parameter is the format string, and the following parameters are the floating-point numbers to be converted.
6. Specific format specifiers can be used in format strings to specify the format of floating-point numbers. Common format specifiers include: %f (output as floating-point), %e (output as exponential), %g (automatically choose between %f or %e based on the specific value), etc.
7. For example, you can convert a floating point number to a string using the following code:
8. Assign the value 3.14 to a float variable f, and use sprintf function to convert it to a string format and store it in a variable named str.
9. After running the above code, the content of the str array will become “3.140000” (output in %f format).
10. Finally, you can use the printf function or puts function to output the converted string, or perform other necessary operations.
11. Print the string.

Note: When using the sprintf function, make sure the target string array is large enough to store the converted string.