c语言打印倒三角形描述 严格按照样例格式输出倒三角。 输入 没有输入 输出 输出样例的倒三角 例如: 输入 Result 没有输入 * * * * * * * * * *

要打印给定的图形，我们可以使用两层嵌套的for循环来控制输出的空格和星号的数量。首先，外层循环控制打印的行数，内层循环用来打印每一行的空格和星号。在每一行的输出之后，需要使用换行符"\n"来换行。 以下是使用for循环打印指定图形的Java代码： ```java public class PrintPattern { public static void main(String[] args) { int n = 6; // 行数 for (int i = 0; i < n; i++) { for (int j = 0; j < n - i; j++) { System.out.print("* "); } System.out.println(); } } } ``` 以下是使用for循环打印指定图形的C语言代码： ```c #include <stdio.h> int main() { int n = 6; // 行数 for (int i = 0; i < n; i++) { for (int j = i; j < n; j++) { printf("* "); } printf("\n"); } return 0; } ``` 这两段代码都会输出一个由星号组成的倒三角形，每行星号数量递减一。可以根据需要调整行数n的值来打印不同大小的图形。<span class="em">1</span><span class="em">2</span> #### 引用[.reference_title] - *1* [使用 for 循环打印下面图形： * * * * * * * * * * * * * * * * * * * *](https://blog.csdn.net/weixin_45563794/article/details/113781500)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"] - *2* [c语言---图形打印](https://blog.csdn.net/wujianrenn/article/details/124051428)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"] [ .reference_list ]

### 打印 ASCII 码表 以下是 C 语言实现打印 ASCII 码表的代码示例： ```c #include <stdio.h> int main() { int i; for (i = 0; i <= 255; i++) { printf("ASCII value of %d is '%c'\n", i, i); } return 0; } ``` --- ### 输出素数 以下是一个优化后的素数输出程序，基于 `sqrt()` 函数[^3]： ```c #include <stdio.h> #include <math.h> int main() { int n = 100, i, j, flag; for (i = 2; i <= n; i++) { flag = 1; for (j = 2; j <= sqrt(i); j++) { if (i % j == 0) { flag = 0; break; } } if (flag == 1) { printf("%d ", i); } } return 0; } ``` --- ### 打印乘法表 根据用户需求动态调整行数的乘法表代码如下[^2]： ```c #include <stdio.h> void print_multiplication_table(int lines) { int i, j; for (i = 1; i <= lines; i++) { for (j = 1; j <= i; j++) { if (lines >= 10 && lines < 20) { printf("%d*%d=%-4d", j, i, i * j); } else if (lines >= 20) { printf("%d*%d=%-6d", j, i, i * j); } else { printf("%d*%d=%-2d", j, i, i * j); } } printf("\n"); } } int main() { int lines; printf("Enter the number of rows: "); scanf("%d", &lines); print_multiplication_table(lines); return 0; } ``` --- ### 数据统计 以下是对一组整数进行简单统计数据（最大值、最小值、平均值）的代码： ```c #include <stdio.h> int main() { int numbers[10], max, min, sum = 0, i; float avg; printf("Enter 10 integers:\n"); for (i = 0; i < 10; i++) { scanf("%d", &numbers[i]); sum += numbers[i]; } max = min = numbers[0]; for (i = 1; i < 10; i++) { if (max < numbers[i]) max = numbers[i]; if (min > numbers[i]) min = numbers[i]; } avg = (float)sum / 10; printf("Max: %d\nMin: %d\nAverage: %.2f\n", max, min, avg); return 0; } ``` --- ### 数字倒置 以下是从键盘输入一个正整数并将其反转的代码： ```c #include <stdio.h> int reverse_number(int num) { int reversed = 0; while (num != 0) { reversed = reversed * 10 + num % 10; num /= 10; } return reversed; } int main() { int num; printf("Enter a positive integer: "); scanf("%d", &num); printf("Reversed Number: %d\n", reverse_number(num)); return 0; } ``` --- ### 计算 e 的近似值 通过泰勒展开公式计算自然常数 \(e\) 的近似值[^4]： ```c #include <stdio.h> double calculate_e(int terms) { double sum = 0.0, temp = 1.0; int i; for (i = 1; i <= terms; i++) { temp *= i; sum += 1.0 / temp; } return sum; } int main() { int terms; printf("Enter the number of terms to approximate e: "); scanf("%d", &terms); printf("Approximation of e with %d terms: %.8lf\n", terms, calculate_e(terms)); return 0; } ``` --- ### cos(x) 近似值 使用泰勒级数计算 \(\cos(x)\) 的近似值： ```c #include <stdio.h> #include <math.h> double cosine_approx(double x, int terms) { double term = 1.0, result = 0.0; int sign = 1; for (int i = 0; i < terms; i++) { result += sign * term; sign = -sign; term *= (x * x) / ((2 * i + 2) * (2 * i + 3)); } return result; } int main() { double angle; int terms; printf("Enter angle in radians and number of terms: "); scanf("%lf%d", &angle, &terms); printf("Cosine approximation: %.8lf\n", cosine_approx(angle, terms)); return 0; } ``` --- ### 解方程分配问题 假设问题是线性方程组求解，以下是一个简单的高斯消元法实现： ```c #include <stdio.h> #define N 3 void gauss_jordan(float matrix[N][N + 1], float solution[N]) { int i, j, k; for (i = 0; i < N; i++) { for (j = 0; j < N; j++) { if (i != j) { float factor = matrix[j][i] / matrix[i][i]; for (k = 0; k <= N; k++) { matrix[j][k] -= factor * matrix[i][k]; } } } } for (i = 0; i < N; i++) { solution[i] = matrix[i][N] / matrix[i][i]; } } int main() { float matrix[N][N + 1] = {{2, 1, -1, 8}, {-3, -1, 2, -11}, {-2, 1, 2, -3}}; float solutions[N]; gauss_jordan(matrix, solutions); printf("Solutions: x=%.2f, y=%.2f, z=%.2f\n", solutions[0], solutions[1], solutions[2]); return 0; } ``` --- ### 寻找完数 以下是一个寻找指定范围内的完全数的程序： ```c #include <stdio.h> void find_perfect_numbers(int start, int end) { int i, j, sum; for (i = start; i <= end; i++) { sum = 0; for (j = 1; j <= i / 2; j++) { if (i % j == 0) { sum += j; } } if (sum == i) { printf("%d is a perfect number.\n", i); } } } int main() { int lower, upper; printf("Enter range (lower and upper): "); scanf("%d%d", &lower, &upper); find_perfect_numbers(lower, upper); return 0; } ``` --- ### 打印特定图案 以下是一个打印三角形图案的示例： ```c #include <stdio.h> void print_pattern(int height) { for (int i = 1; i <= height; i++) { for (int j = 1; j <= i; j++) { printf("* "); } printf("\n"); } } int main() { int h; printf("Enter pattern height: "); scanf("%d", &h); print_pattern(h); return 0; } ``` 相关问题