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Commit 60587f0

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更新了部分文档和代码
1 parent 3ef3721 commit 60587f0

106 files changed

Lines changed: 1143 additions & 2110 deletions

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‎Day01-15/12.字符串和正则表达式.md‎

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@@ -32,7 +32,7 @@
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| \| | 分支 | foo\|bar | 可以匹配foo或者bar |
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| (?#) | 注释 | | |
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| (exp) | 匹配exp并捕获到自动命名的组中 | | |
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| (? <name>exp) | 匹配exp并捕获到名为name的组中 | | |
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| (?<name>exp) | 匹配exp并捕获到名为name的组中 | | |
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| (?:exp) | 匹配exp但是不捕获匹配的文本 | | |
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| (?=exp) | 匹配exp前面的位置 | \\b\\w+(?=ing) | 可以匹配I'm dancing中的danc |
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| (?<=exp) | 匹配exp后面的位置 | (?<=\\bdanc)\\w+\\b | 可以匹配I love dancing and reading中的第一个ing |

‎Day21-30/code/list_by_vue.html‎

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@@ -68,7 +68,7 @@
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</li>
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</ul>
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<div>
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<input @keydown.enter="addItem()" type="text" id="fname" v-model="fname">
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<input @keydown.enter="addItem()" type="text" id="fname" v-model.trim="fname">
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<button id="ok" @click="addItem()">确定</button>
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</div>
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</div>
@@ -82,8 +82,8 @@
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},
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methods: {
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addItem() {
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if (this.fname.trim().length > 0) {
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this.fruits.push(this.fname.trim())
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if (this.fname.length > 0) {
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this.fruits.push(this.fname)
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}
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this.fname = ''
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},
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@@ -65,7 +65,7 @@
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<div class="search">
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<!-- type属性是text的input标签代表文本框 可以接收用户输入 -->
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<!-- placeholder是文本框的输入提示 -->
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<input type="text" placeholder="请输入垃圾名字" v-model="word" @keydown.enter="search()">
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<input type="text" placeholder="请输入垃圾名字" v-model.trim="word" @keydown.enter="search()">
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<!-- button代表按钮 点击可以开始查询 -->
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<button @click="search()">查询</button>
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</div>
@@ -75,9 +75,9 @@
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<div v-for="result in results">
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<p>
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<!-- img是图像标签 可以用来实现图片-->
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<img :src="pictures[result.type]" width="56" :alt="types[result.type]">
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<img :src="'images/' + pictures[result.type]" width="56" :alt="types[result.type]">
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&nbsp;&nbsp;
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<!-- span是跨度标签 代表一个逻辑区域(不分段)-->
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<!-- span是跨度标签 代表一个逻辑区域-->
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<span>{{ result.name }}</span>
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&nbsp;&nbsp;
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<span class="pre" v-if="result.aipre == 1">(预测结果)</span>
@@ -102,7 +102,7 @@
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// 查询垃圾分类的函数
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search() {
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if (this.word.trim().length > 0) {
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let key = '9aeb28ee8858a167c1755f856f830e22'
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let key = '9636cec76ee2593ba6b195e5b770b394'
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let url = `http://api.tianapi.com/txapi/lajifenlei/?key=${key}&word=${this.word}`
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fetch(url)
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.then(resp => resp.json())

‎Day36-40/36-38.关系型数据库MySQL.md‎

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@@ -74,6 +74,8 @@ MySQL在过去由于性能高、成本低、可靠性好,已经成为最流行
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```Shell
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rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm
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rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm
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rpm -ivh mysql-community-libs-compat-5.7.26-1.el7.x86_64.rpm
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rpm -ivh mysql-community-devel-5.7.26-1.el7.x86_64.rpm
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rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm
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rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm
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```

‎Day36-40/code/HRS_create_and_init.sql‎

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drop database if exists hrs;
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create database hrs default charset utf8;
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create database hrs default charset utf8mb4;
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use hrs;
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@@ -14,6 +14,8 @@ dloc varchar(20) not null comment '所在地',
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primary key (dno)
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);
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-- alter table tb_dept add constraint pk_dept_dno primary key(dno);
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insert into tb_dept values
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(10, '会计部', '北京'),
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(20, '研发部', '成都'),
@@ -29,11 +31,13 @@ mgr int comment '主管编号',
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sal int not null comment '员工月薪',
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comm int comment '每月补贴',
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dno int comment '所在部门编号',
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primary key (eno)
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primary key (eno),
35+
foreign key (dno) references tb_dept(dno),
36+
foreign key (mgr) references tb_emp(eno)
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);
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35-
alter table tb_emp add constraint fk_emp_mgr foreign key (mgr) references tb_emp (eno);
36-
alter table tb_emp add constraint fk_emp_dno foreign key (dno) references tb_dept (dno);
39+
--alter table tb_emp add constraint fk_emp_mgr foreign key (mgr) references tb_emp (eno);
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--alter table tb_emp add constraint fk_emp_dno foreign key (dno) references tb_dept (dno);
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insert into tb_emp values
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(7800, '张三丰', '总裁', null, 9000, 1200, 20),
@@ -70,4 +74,4 @@ insert into tb_emp values
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-- 查询主管的姓名和职位
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73-
-- 查询月薪排名4~6名的员工姓名和月薪
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-- 查询月薪排名4~6名的员工排名、姓名和月薪

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