识别一个内容为123的二维码，想让其二维码内容出现在LCD屏幕上。出现错误：没有足够的位置参数，

[gtq4]

# QRCode Example
#
# This example shows the power of the OpenMV Cam to detect QR Codes
# using lens correction (see the qrcodes_with_lens_corr.py script for higher performance).

import sensor, image, time, lcd, pyb

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False) # must turn this off to prevent image washout...
clock = time.clock()
lcd.init() # Initialize the lcd screen.

while(True):
    clock.tick()
    img = sensor.snapshot()
    

    for i in range(10):
        x = (pyb.rng() % (2*img.width())) - (img.width()//2)
        y = (pyb.rng() % (2*img.height())) - (img.height()//2)
        r = (pyb.rng() % 127) + 128
        g = (pyb.rng() % 127) + 128
        b = (pyb.rng() % 127) + 128
    

    img.lens_corr(1.8) # strength of 1.8 is good for the 2.8mm lens.
    for code in img.find_qrcodes():
        img.draw_rectangle(code.rect(), color = (255, 0, 0))
        print(code)
        img.draw_string(img.draw_string(x, y, code.payload(), color = (r, g, b), scale = 2, mono_space = False)
)
    lcd.display(img)
    print(clock.fps())

[kidswong999]

你要好好检查一下你的代码。

[gtq4]

检查了好几遍，自己也改了，不对，一扫到二维码就出现错误。。。。

[kidswong999]

你34行多了一个括号是什么意思，而且看上去你好像不知道这个代码的意义。。。

[gtq4]

我看到了，哇没注意