What is the programming code for adding from 1 to 100 in C language?

The programming code for adding from 1 to 100 is "int sum = 0;for (...) {sum = i;}printf("...", sum);return 0;", details Steps: 1. Define the variable "sum" to store the accumulated results; 2. Use a for loop to repeatedly perform the addition operation; 3. Use the "printf" function to display the calculation results; 4. Use "gcc -o sum sum.c" to compile the code. Then use "./sum" to run the code.

#The operating environment of this tutorial is: Windows 10 system, C 20 version, Dell g3 computer.

C language is a commonly used programming language that is widely used to develop various applications. In the process of learning C language, it is very important to master some basic programming skills. This article will introduce in detail how to use C language to write a program to calculate the sum from 1 to 100.

Understand the problem

Before we start writing code, we first need to understand the problem. We want to calculate the sum from 1 to 100. Specifically, we need to use a loop structure to repeatedly perform the addition operation and accumulate the results of each calculation.

Writing the code

The following is the complete C code to calculate the sum from 1 to 100.

#include <stdio.h>
int main() {
int sum = 0;
for (int i = 1; i <= 100; i++) {
sum += i;
}
printf("从1加到100的和为：%d\n", sum);
return 0;
}

1. Declare a variable `sum` to store the accumulated result and initialize it to 0.

2. Use a for loop to repeatedly perform addition operations. The loop variable `i` is initialized to 1, the loop condition is set to `i <= 100`, and after each loop ends, the value of `i` is updated to `i`. In the body of the loop, we accumulate `i` into `sum`.

3. We use the `printf` function to display the calculation results.

4. Compile and run the code

After writing the code, we need to compile the code into an executable file and run it. From the command line, use the following command to compile the code:

gcc -o sum sum.c

This will produce an executable file named `sum`. Then, enter the following command to run the code:

./sum

The program will output the calculation result:

从1加到100的和为：5050

Conclusion:

Through this article, we learned how Write a program in C language to calculate the sum of numbers from 1 to 100. By choosing a suitable loop structure and writing the corresponding code, we successfully solved this problem. At the same time, we also consolidated the basic programming skills of C language. I hope this article will help you learn C language!

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