我是codeigniter的新手。当我从数据库中获取数据时，我没有def solve_ch17(fn):
black, white = (0, 0, 0), (255, 255, 255)
bg, fg = white, black
# open image
img = Image.open(fn)
mx, my = img.size
pix = img.load()
# remove background
for x in range(mx):
for y in range(my):
if pix[x,y] == white:
pix[x,y] = fg
else:
pix[x,y] = bg
# split text
lx, ly = 70, 23
for c in range(6):
for xi in range(9):
for yi in range(12):
x, y = lx + c*9 + xi, ly + yi
if pix[x, y] == fg:
nx = 15 + c*20 + xi
pix[x, y], pix[nx, y] = bg, fg
# scale up
r = 3
img = img.resize((int(round(mx * r, 2)), int(round(my * r, 2))), Image.BICUBIC) # NEAREST, BILINEAR, BICUBIC
img.save(fn + '.ppm')
result = check_output(['ocrad', fn, + '.ppm']).strip().replace(' ', '')
return result
语句的问题，它没有显示想要的结果，而且我有表名＆＃39; users＆＃39;在用户表中，一列是权利。我希望当用户登录时哪些权利具有＆＃39; 1＆＃39;他们显示管理员权限，而普通用户登录他们显示普通用户。我也在使用会话。
抱歉，我是英语新手。
我的代码是
process.on('uncaughtException', function handler(err) {
// do stuf based on err, but make sure node.js quits after
// displaying the error and performing basic cleanup - see below
})
答案 0 :(得分：0)
试试这个
if($this->session->userdata('logged_in'))
{
$session_data = $this->session->userdata('logged_in');
if($session_data['rights']==1)
{
//do something
}
}