摘要：
#!/usr/bin/env python#data = open("yesterday",encoding="utf-8").read()f = open("yesterday",'r',encoding="utf-8")#文件句柄,参数w为创建一个文件，#参数r为读，参数a为追加，可写#参数r+ 阅读全文
摘要：
#!/usr/bin/env pythonimport sys,timefor i in range(50): sys.stdout.write('#') sys.stdout.flush() time.sleep(0.1) 阅读全文
摘要：
{1, 3, 4, 5, 6, 7, 9} {0, 2, 66, 4, 6, 8, 22}{4, 6}{4, 6}{0, 1, 2, 3, 4, 5, 6, 7, 66, 9, 8, 22}{0, 1, 2, 3, 4, 5, 6, 7, 66, 9, 8, 22}{1, 3, 5, 7, 9}{1 阅读全文