Python+opencv显示文字

import cv2
 
cap = cv2.VideoCapture('data/zuqiu.mp4')
while cap.isOpened():
    ret, frame = cap.read()
    # 显示文字:图片,文字，位置，字体类型，字体大小，字体颜色，字体粗细
    cv2.putText(frame, "foot ball", (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)
    cv2.imshow('frame', frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
 
cap.release()
cv2.destroyAllWindows()