fetcher.max.crawl.delay 默认是30秒,这里改为 5秒修改nutch-default.xml<property> <name>fetcher.max.crawl.delay</name> <value></value> <description> If the Crawl-Delay in robots.txt is set to greater than this value (in seconds) then
Problem Description The three hands of the clock are rotating every second and meeting each other many times everyday. Finally, they get bored of this and each of them would like to stay away from the other two. A hand is happy if it is at least D de
一.用默认设置绘制折线图 import matplotlib.pyplot as plt x_values=list(range(11)) #x轴的数字是0到10这11个整数 y_values=[x**2 for x in x_values] #y轴的数字是x轴数字的平方 plt.plot(x_values,y_values,c='green') #用plot函数绘制折线图,线条颜色设置为绿色 plt.title('Squares',fontsize=24) #设置图表标题和标题字号 plt.t