代码出现问题

[gtxp]

import sensor, image, time

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time=2000)
sensor.set_auto_gain(False)
sensor.set_auto_whitebal(False)
clock=time.clock()
 
threshold=[(23, 73, 19, 93, 8, 54),(70, 27, -71, -18, -21, 41), (32, 61, -66, 58, -99, -58)] #红色 绿色 蓝色



while(True):
   clock.tick()
   img=sensor.snapshot()
   for blob in img.find_blobs(threshold,pixels_threshold=400,area_threshold=400):    
       img.draw_rectangle(blob.rect())
       img.draw_cross(blob.cx(),blob.cy())
       red_blobs=img.find_blobs[(23, 73, 19, 93, 8, 54)]
       green_blobs=img.find_blobs[(70, 27, -71, -18, -21, 41)]
       blue_bobs=img.fing_blobs[(32, 61, -66, 58, -99, -58)]
       red_blob=red_blobs[0]
       green_blob=green_blobs[0]
       blue_blob=blue_blobs[0]   
  
       redX=red_blob.cx()
       greenX=green_blob.cx()
       blueX=blue_blob.cx()
   
       if(redX>=greenX):
          print('red')

[kidswong999]

函数的调用应该用小括号扩起来(，而不是中括号[

img.find_blobs(阈值)

而不是

img.find_blobs[阈值]