标签:new book util set link atl 循环 pytho stat
python实现
#调用内置函数去重
def func(str):
len1=len(str)
len2=len(list(set(str)))
print("去重后的结果是:",list(set(str)),"\t去重个数是:",(len1-len2))
#for 循环去重
def func1(str):
nums=[]
for n in str:
if n not in nums:
nums.append(n)
print("去重后的结果是:",sorted(nums),"\t去重个数是:",(len(str)-len(nums)))
# while去重
def func2(str):
len1=len(str)
for n in str:
while str.count(n)>1:
del str[str.index(n)]
print("去重后的结果是:",sorted(str),"\t去重个数是:",(len1-len(str)))
str=[1,3,2,4,2,4,1,6,4,5]
func2(str)
字典去重
#调用内置函数去重
def func(str):
len1=len(str.values())
len2=len(list(set(str.values())))
print("去重后的结果是:",list(set(str.values())),"\t去重个数是:",(len1-len2))
#for 循环去重
def func1(str):
nums=[]
for n in str.values():
if n not in nums:
nums.append(n)
print("去重后的结果是:",sorted(nums),"\t去重个数是:",(len(str.values())-len(nums)))
str=[1,3,2,4,2,4,1,6,4,5]
dirc={1:1,2:2,3:3,4:3}
func2(dirc)
字符串追加去重排序
#调用内置函数去重
def func(str1,str2):
print("去重后的结果是:",sorted(set(str1+str2)),"\t去重个数是:",(len(str1+str2)-len(set(str1+str2))))
#for 循环去重
def func1(str1,str2):
nums=[]
str=str1+str2
for n in str:
if n not in nums:
nums.append(n)
print("去重后的结果是:",sorted(nums),"\t去重个数是:",(len(str)-len(nums)))
# while去重
def func2(str1,str2):
str=str1+str2
for n in str:
while str.count(n)>1:
del str[str.index(n)]
print("去重后的结果是:",sorted(str),"\t去重个数是:",(len(str1+str2)-len(str)))
str1=[‘很好‘,‘不错‘,‘很好‘,‘Very‘,‘Book‘,‘I‘,‘Love‘,‘I‘]
str2=[‘Java‘,‘C#‘,‘Python‘,‘C#‘]
func2(str1,str2)
Java实现
import java.util.LinkedList;
import java.util.List;
public class func {
public static void unique(String[] str){
// array_unique
List<String> list = new LinkedList<String>();
for(int i = 0; i < str.length; i++) {
if(!list.contains(str[i])) {
list.add(String.valueOf(str[i]));
}
}
System.out.print("去重后的结果:"+list+"\t 共去重个数:"+(str.length-list.size()));
}
public static void main(String[] args){
String[] str={"1","3","2","4","2","4","1","6","4","5"};
unique(str);
}
}
set实现
import java.util.HashSet;
import java.util.Set;
public class func {
public static void unique(String[] str){
Set<String> set = new HashSet<String>();
for (int i=0; i<str.length; i++) {
set.add(str[i]);
}
System.out.print("去重后的结果:"+set+"\t 共去重个数:"+(str.length-set.size()));
}
public static void main(String[] args){
String[] str={"Python","SQL","C#","Java","C","Python","R","Matlab","C++","SQL"};
unique(str);
}
}
标签:new book util set link atl 循环 pytho stat
原文地址:http://www.cnblogs.com/baiboy/p/6030381.html