---恢复内容开始---
a=[1,2,3,4,5,6,'a','b','c',3,2,1,3,4,5] b=[2,3,4,"a",'c',7,6,6,5,4] a_s=set(a) b_s=set(b) print(a_s,' ',b_s) c_s=a_s|b_s print(c_s) x=a_s<=b_s #判断a是否是b的子集 print(x)
a=[1,2,3,4,5,6,'a','b','c',3,2,1,3,4,5] b=[2,3,4,"a",'c',7,6,6,5,4] name=list(set(a)) #对a列表做去重 print(name)
print("1 %s的用法,任何数据类型传递") msg1= " i am %s my hobby is %s " % ("lhf",[1,2,3]) print (msg1) msg2=" i am %.2s" % "sxj" #%.2s代表截取2个字符 print (msg2) print("2 %d整形数据传递") msg3=" i am %s ,i am %d years old" % ("sxj",111) print (msg3) print("3 打印浮点数") tp1="percent %f"%99.12345677#默认保留小数点后6位,会四舍五入 print("4 %f打印浮点数",tp1) tp2="percent %.3f"%99.55545 print("5 %.3f代表保留小数点后3位",tp2) print("6 打印百分比") tp3='percent %.3f %%'% 99.1233445 print("7 打印百分比用%%",tp3) #通过类似于建值对对方式创造字符串 tp4=" I am %(name)s,I am %(age)d years old" % {"name":"sxj","age":111} print("8 使用健值对对方式创造字符串",tp4) #注意传值是字典的格式 tp5="percent %(aaa).2f%%" % {"aaa":45.4344555} print("9 使用字典形式传递浮点数",tp5) tp6="i am 33[41;1m%s,i am %d 33[0m"%("sxj",111) print ("10 上颜色",tp6)#