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大約有 200 項(xiàng)符合查詢結(jié)果 ,庫(kù)內(nèi)數(shù)據(jù)總量為 78,404 項(xiàng)。(搜索耗時(shí):0.0123秒)

41.Java 流分區(qū)

...收集器。以下代碼顯示如何根據(jù)性別對(duì)employee進(jìn)行分區(qū)。import java.time.LocalDate; import java.time.Month; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { Map<...

http://m.o2fo.com/java/java-stream-partitioning.html

42.D編程 運(yùn)算符

...9嘗試以下示例以了解D編程語(yǔ)言中可用的所有算術(shù)運(yùn)算符-import std.stdio; int main(string[] args) { int a=21; int b=10; int c ; c=a + b; writefln("Line 1 - Value of c is %d\n", c ); c=a - b; writefln("Line 2 - Value of c is %d\n", c ); c=a * b; writefln("Line 3 - Value ...

http://m.o2fo.com/d_tutorial/d_programming_operators.html

43.EJB快速指南

...e接口。 LibrarySessionBeanRemote package com.tutorialspoint.stateless; import java.util.List; import javax.ejb.Remote; @Remote public interface LibrarySessionBeanRemote { void addBook(String bookName); List getBooks(); } LibrarySessionBean package com.tutorialspoint.stateless; import java.util.A...

http://m.o2fo.com/ejb/ejb_quick_guide.html

44.Java 并行流

...換為順序流。例子以下代碼顯示如何對(duì)流進(jìn)行串行處理:import java.time.LocalDate; import java.time.Month; import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { String names = Employee.person...

http://m.o2fo.com/java/java-parallel-streams.html

45.dart

...覽器集成。 Dart 最有爭(zhēng)議的特性必然是它的可選類型。 import "dart:collection"; import "dart:math" as DM; // 歡迎進(jìn)入15分鐘的 Dart 學(xué)習(xí)。 http://www.dartlang.org/ // 這是一個(gè)可實(shí)際執(zhí)行的向?qū)?。你可以?Dart 運(yùn)行它 // 或者在線執(zhí)行! 可以把代碼...

http://m.o2fo.com/iqmrhf/rxthzozt.html

46.Pandas 去重

...首先創(chuàng)建一個(gè)包含有重復(fù)值的 DataFrame 對(duì)象,如下所示:import pandas as pd data={ 'A':[1,0,1,1], 'B':[0,2,5,0], 'C':[4,0,4,4], 'D':[1,0,1,1] } df=pd.DataFrame(data=data) print(df)輸出結(jié)果: A B C D 0 1 0 4 1 1 0 2 0 0 2 1 5 4 1 3 1 0 4 11) 默認(rèn)保留第一次出現(xiàn)的重...

http://m.o2fo.com/pandas/pandas-drop-duplicate.html

47.卷2:第21章 Twisted

...戶端的實(shí)現(xiàn),首先來(lái)看看服務(wù)器部分: from twisted.internet import protocol, reactor class Echo(protocol.Protocol): def dataReceived(self, data): # As soon as any data is received, write it back self.transport.write(data) class EchoFactory(protocol.Factory): def buildProtocol(self, add...

http://m.o2fo.com/open_source_architecture/pfhowozt.html

48.Java 實(shí)例 211; 查看端口是否已使用

...檢測(cè)端口是否已經(jīng)使用: /* author by w3cschool.cn Main.java */ import java.net.*; import java.io.*; public class Main { public static void main(String[] args) { Socket Skt; String host = "localhost"; if (args.length > 0) { host = args[0]; } for (int i = 0; i < 1024; i++) { try { Syst...

http://m.o2fo.com/java/net-port.html

49.Filter過(guò)濾器

...續(xù)的Filter或者處理。 步驟1:編寫Filter類 package test.filter; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletContext; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.se...

http://m.o2fo.com/chenyh1/chenyh1-h1z82si5.html

50.GoFrame gtime-工具方法

...1,基本使用 創(chuàng)建時(shí)間對(duì)象及獲取當(dāng)前時(shí)間戳。package main import ( "fmt" "github.com/gogf/gf/v2/os/gtime" ) func main() { fmt.Println("Date :", gtime.Date()) fmt.Println("Datetime :", gtime.Datetime()) fmt.Println("Second :", gtime.Timestamp()) fmt.Println("Millisecond:"...

http://m.o2fo.com/goframe/goframe-fg923ndh.html

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41.Java 流分區(qū)

...收集器。以下代碼顯示如何根據(jù)性別對(duì)employee進(jìn)行分區(qū)。import java.time.LocalDate; import java.time.Month; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { Map<...

http://m.o2fo.com/java/java-stream-partitioning.html

42.D編程 運(yùn)算符

...9嘗試以下示例以了解D編程語(yǔ)言中可用的所有算術(shù)運(yùn)算符-import std.stdio; int main(string[] args) { int a=21; int b=10; int c ; c=a + b; writefln("Line 1 - Value of c is %d\n", c ); c=a - b; writefln("Line 2 - Value of c is %d\n", c ); c=a * b; writefln("Line 3 - Value ...

http://m.o2fo.com/d_tutorial/d_programming_operators.html

43.EJB快速指南

...e接口。 LibrarySessionBeanRemote package com.tutorialspoint.stateless; import java.util.List; import javax.ejb.Remote; @Remote public interface LibrarySessionBeanRemote { void addBook(String bookName); List getBooks(); } LibrarySessionBean package com.tutorialspoint.stateless; import java.util.A...

http://m.o2fo.com/ejb/ejb_quick_guide.html

44.Java 并行流

...換為順序流。例子以下代碼顯示如何對(duì)流進(jìn)行串行處理:import java.time.LocalDate; import java.time.Month; import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { String names = Employee.person...

http://m.o2fo.com/java/java-parallel-streams.html

45.dart

...覽器集成。 Dart 最有爭(zhēng)議的特性必然是它的可選類型。 import "dart:collection"; import "dart:math" as DM; // 歡迎進(jìn)入15分鐘的 Dart 學(xué)習(xí)。 http://www.dartlang.org/ // 這是一個(gè)可實(shí)際執(zhí)行的向?qū)?。你可以?Dart 運(yùn)行它 // 或者在線執(zhí)行! 可以把代碼...

http://m.o2fo.com/iqmrhf/rxthzozt.html

46.Pandas 去重

...首先創(chuàng)建一個(gè)包含有重復(fù)值的 DataFrame 對(duì)象,如下所示:import pandas as pd data={ 'A':[1,0,1,1], 'B':[0,2,5,0], 'C':[4,0,4,4], 'D':[1,0,1,1] } df=pd.DataFrame(data=data) print(df)輸出結(jié)果: A B C D 0 1 0 4 1 1 0 2 0 0 2 1 5 4 1 3 1 0 4 11) 默認(rèn)保留第一次出現(xiàn)的重...

http://m.o2fo.com/pandas/pandas-drop-duplicate.html

47.卷2:第21章 Twisted

...戶端的實(shí)現(xiàn),首先來(lái)看看服務(wù)器部分: from twisted.internet import protocol, reactor class Echo(protocol.Protocol): def dataReceived(self, data): # As soon as any data is received, write it back self.transport.write(data) class EchoFactory(protocol.Factory): def buildProtocol(self, add...

http://m.o2fo.com/open_source_architecture/pfhowozt.html

48.Java 實(shí)例 211; 查看端口是否已使用

...檢測(cè)端口是否已經(jīng)使用: /* author by w3cschool.cn Main.java */ import java.net.*; import java.io.*; public class Main { public static void main(String[] args) { Socket Skt; String host = "localhost"; if (args.length > 0) { host = args[0]; } for (int i = 0; i < 1024; i++) { try { Syst...

http://m.o2fo.com/java/net-port.html

49.Filter過(guò)濾器

...續(xù)的Filter或者處理。 步驟1:編寫Filter類 package test.filter; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletContext; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.se...

http://m.o2fo.com/chenyh1/chenyh1-h1z82si5.html

50.GoFrame gtime-工具方法

...1,基本使用 創(chuàng)建時(shí)間對(duì)象及獲取當(dāng)前時(shí)間戳。package main import ( "fmt" "github.com/gogf/gf/v2/os/gtime" ) func main() { fmt.Println("Date :", gtime.Date()) fmt.Println("Datetime :", gtime.Datetime()) fmt.Println("Second :", gtime.Timestamp()) fmt.Println("Millisecond:"...

http://m.o2fo.com/goframe/goframe-fg923ndh.html

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