尝试一下:根据需要设置时间
[(54,74),(52,71),(83,66)]
输出:
Color col;
float red,green,blue,gray;
for (int i = 0; i < oImage.Width; i++)
for (int j = 0; j < oImage.Height; j++)
{
col = oImage.GetPixel(i,j);
red = col.R;
green = col.G;
blue = col.B;
gray = red*0.21 + green*0.72 + blue*0.07;
oImage.SetPixel(i,j,Color.FromArgb(gray,gray,gray));
}
picImage.Refresh();
,
您可以尝试
import random
from collections import Counter
i=0
numbers = []
while i<100000:
numbers.append(random.randint(0,9999))
i += 1
print(Counter(numbers))
或者如果您想保留4位数格式:
import random
from collections import Counter
i=0
numbers = []
while i<1000:
number=''.join(map(str,[random.randint(0,9)for value in range(0,4)]))
numbers.append(number)
i += 1
print(Counter(numbers))
,
尝试一下。
import time
import random
from collections import Counter
from tqdm import tqdm
def most_common(a,b,top=5):
start = time.time()
rands = []
time_in_min = 15
print('Set maximum time is :',time_in_min,' minutes. You can stop before that')
pbar = tqdm(total=1000)
pbar = tqdm(total=1000)
while time.time()-start<time_in_min*60:
pbar.update(1000)
rands.append(random.randint(a,b))
pbar.close()
rands = Counter(rands)
return rands.most_common(top)
most_common(0,100,5)
#[(14,53415),(59,53269),(15,53229),(42,53223),(19,53222)]
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