C语言Hello World程序

C语言教程：从Hello World到指针结构体，轻松掌握编程基础

include <stdio.h> int main() { printf("Hello, World!\n"); return 0; } int age = 20; float salary = 8500.50; char grade = 'A'; // 函数定义 int addNumbers(int a, int b) { return a + b; } // 函数调用 int result = addNumbers(5, 3); int number = 42; int *ptr = &num...