使用python在矩阵中查找值

def find_value(matrix, target):
    for i in range(len(matrix)):
        for j in range(len(matrix[i])):
            if matrix[i][j] == target:
                return i, j
    return -1, -1  # 如果未找到目标值，返回-1

# 示例矩阵
matrix = [[1, 2, 3],
          [4, 5, 6],
          [7, 8, 9]]

target = 5
result = find_value(matrix, target)
if result[0] != -1:
    print(f"找到目标值 {target}，位置为 ({result[0]}, {result[1]})")
else:
    print(f"未找到目标值 {target}")

import numpy as np

# 示例矩阵
matrix = np.array([[1, 2, 3],
                   [4, 5, 6],
                   [7, 8, 9]])

target = 5
indices = np.where(matrix == target)
if len(indices[0]) > 0:
    print(f"找到目标值 {target}，位置为 ({indices[0][0]}, {indices[1][0]})")
else:
    print(f"未找到目标值 {target}")