代码出什么问题了吗？为什么在ide里运行是就卡住了呢？但是没有报错

[bp6z]

# This example shows off single color RGB565 tracking using the OpenMV Cam.

import sensor, image, time
import time
from pyb import DAC
dac = DAC("P6")
threshold_index = 0 # 0 for red, 1 for green, 2 for blue

## Color Tracking Thresholds (L Min, L Max, A Min, A Max, B Min, B Max)
## The below thresholds track in general red/green/blue things. You may wish to tune them...
thresholds = [(30, 100, 15, 127, 15, 127), # generic_red_thresholds
              (30, 100, -64, -8, -32, 32), # generic_green_thresholds
              (0, 30, 0, 64, -128, 0)] # generic_blue_thresholds

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False) # must be turned off for color tracking
sensor.set_auto_whitebal(False) # must be turned off for color tracking
clock = time.clock()

## Only blobs that with more pixels than "pixel_threshold" and more area than "area_threshold" are
## returned by "find_blobs" below. Change "pixels_threshold" and "area_threshold" if you change the
## camera resolution. "merge=True" merges all overlapping blobs in the image.

while(True):
    clock.tick()
    img = sensor.snapshot()
    for blob in img.find_blobs([thresholds[threshold_index]], pixels_threshold=200, area_threshold=200, merge=True):
        img.draw_rectangle(blob.rect())
        img.draw_cross(blob.cx(), blob.cy())
    #print(clock.fps())
#import time
#from pyb import DAC
#dac = DAC("P6")
    while(True):
    #for i in range(256):
        dac.write(255)
        #time.sleep(20)
    #for i in range(256):
        #dac.write(255-i)
        #time.sleep(20)

[kidswong999]

没有卡住，因为你的死循环里又套了一个死循环，你看不到现象而已。

[bp6z]

@kidswong999 如何破解呢？您应该可以看出来我想做一个识别颜色后输出模拟信号的程序