From 0b3dd58f45d2ff77f6f1139f2a7aa49576af5e98 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Wed, 30 Nov 2022 09:49:39 +0800 Subject: [PATCH 1/2] =?UTF-8?q?=E5=88=9D=E5=A7=8B=E5=8C=96?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...\273\272\346\226\207\346\234\254\346\226\207\346\241\243.txt" | 1 + 1 file changed, 1 insertion(+) create mode 100644 "34 \345\210\230\346\231\272\347\277\224/\346\226\260\345\273\272\346\226\207\346\234\254\346\226\207\346\241\243.txt" diff --git "a/34 \345\210\230\346\231\272\347\277\224/\346\226\260\345\273\272\346\226\207\346\234\254\346\226\207\346\241\243.txt" "b/34 \345\210\230\346\231\272\347\277\224/\346\226\260\345\273\272\346\226\207\346\234\254\346\226\207\346\241\243.txt" new file mode 100644 index 0000000..9233c1a --- /dev/null +++ "b/34 \345\210\230\346\231\272\347\277\224/\346\226\260\345\273\272\346\226\207\346\234\254\346\226\207\346\241\243.txt" @@ -0,0 +1 @@ +dd \ No newline at end of file -- Gitee From 8898914b6cbd693393ae51d313ab11bbac503513 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Thu, 1 Dec 2022 22:25:46 +0800 Subject: [PATCH 2/2] =?UTF-8?q?=E7=AC=AC=E4=B8=89=E6=AC=A1=E4=BD=9C?= =?UTF-8?q?=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20221127java\345\217\230\351\207\217.md" | 65 +++++++++++++++++ ...va\346\211\253\346\217\217\345\231\250.md" | 73 +++++++++++++++++++ ...va\350\277\220\347\256\227\347\254\246.md" | 64 ++++++++++++++++ ...7\346\234\254\346\226\207\346\241\243.txt" | 1 - 4 files changed, 202 insertions(+), 1 deletion(-) create mode 100644 "34 \345\210\230\346\231\272\347\277\224/20221127java\345\217\230\351\207\217.md" create mode 100644 "34 \345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" create mode 100644 "34 \345\210\230\346\231\272\347\277\224/20221201 java\350\277\220\347\256\227\347\254\246.md" delete mode 100644 "34 \345\210\230\346\231\272\347\277\224/\346\226\260\345\273\272\346\226\207\346\234\254\346\226\207\346\241\243.txt" diff --git "a/34 \345\210\230\346\231\272\347\277\224/20221127java\345\217\230\351\207\217.md" "b/34 \345\210\230\346\231\272\347\277\224/20221127java\345\217\230\351\207\217.md" new file mode 100644 index 0000000..4920882 --- /dev/null +++ "b/34 \345\210\230\346\231\272\347\277\224/20221127java\345\217\230\351\207\217.md" @@ -0,0 +1,65 @@ +# java + +## 变量 + +1.字符 + +```java + char sex='男'； +``` + + + +2.整数 + +```java +byte short int[默认] long +``` + + + +3.小数 + +```java + float double{默认} +``` + + + +4.字符串 + +```java +string +``` + + + +5.布尔 + +```java +boolean +``` + + + +## 作业 + +```java +package com.mxdx; + +public class noah { + public static void main(String[] args) { + String name="方舟."; + char sex='人'; + System.out.println("它的英文名叫noah他的中文名名叫"+name); + System.out.println("它承载着"+sex+"的未来"); + } +} + +``` + + + + + + \ No newline at end of file diff --git "a/34 \345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" "b/34 \345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" new file mode 100644 index 0000000..a995054 --- /dev/null +++ "b/34 \345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" @@ -0,0 +1,73 @@ + # java扫描器 + +1.创建扫描器 + +```java +Scanner sc=new Scanner(System.in) +``` + +2.创建变量 + +```java +String name=sc.next() + double xiaoshu=sc.nextdouble() + int number=sc.nextint() +``` + +3.运算符 + +```java ++-*/% +``` + +4.字符串相关 + +```java +public class lx { + public static void main(String[] args) { + int a=3,b=4,c=5; + System.out.println(a+b+c);//值为12 + System.out.println(""+a+b+c);//值为345 + } +} +``` + +## 作业 + +```java +1.import java.util.Scanner; + +public class jiu { + public static void main(String[] args) { + Scanner sc = new Scanner(System.in); + System.out.println("请输入一个四位数"); + int qi= sc.nextInt(); + int qw=qi/1000; + int bw=qi/100%10; + int sw=qi/10%10; + int gw=qi%10; + System.out.println("千位数为；"+qw); + System.out.println("百位数为；"+bw); + System.out.println("十位数为；"+sw); + System.out.println("个位数为；"+gw); + } +} + +2.import java.util.Scanner; + +public class qi { + public static void main(String[] args) { + Scanner sc=new Scanner(System.in); + System.out.println("请输入一个华氏温度"); + int jiu= sc.nextInt(); + int ssd=(jiu-32)*5/9; + System.out.println("摄氏度为；"+ssd); + System.out.println("请输入一个摄氏温度"); + int noah= sc.nextInt(); + int hsd=noah*9/5+32; + System.out.println("华氏度为："+hsd); + } +} + +``` + diff --git "a/34 \345\210\230\346\231\272\347\277\224/20221201 java\350\277\220\347\256\227\347\254\246.md" "b/34 \345\210\230\346\231\272\347\277\224/20221201 java\350\277\220\347\256\227\347\254\246.md" new file mode 100644 index 0000000..929b574 --- /dev/null +++ "b/34 \345\210\230\346\231\272\347\277\224/20221201 java\350\277\220\347\256\227\347\254\246.md" @@ -0,0 +1,64 @@ +# Java + +### 笔记 + +1.自增与自减 + +```java +int a=3 +b=a++ //b=3,a=4 +b=++a //b=4,a=4 +``` + +2.运算符 + +```java +int a=6,b=3 +a+=b//a=9 +a-=b//a=3 +a*=b//a=18 +a/=b//a=2 +a%=b//a=0 +``` + +3.大小比较 + +```java +a==b//a等于b +a>b +a=b +a<=b +a!=b//a不等于b +``` + +### 作业 + +```java +import java.util.Scanner; + +public class noah { + public static void main(String[] args) { + Scanner sc=new Scanner(System.in); + System.out.println("请输入中国队进球数"); + int a= sc.nextInt(); + System.out.println("请输入阿根廷队进球数"); + int b= sc.nextInt(); + if (a>b){ + System.out.println("希望有这个可能"); + } + else if (a