iii 0.1.2

Simple Config file for lib
Documentation 
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# iii

#### 介绍
SImple config file for lib

#### 配置文件格式

##### default.iii
~~~
c1=value
#2222
c2=value2
c3=ccc3
c5=5c
~~~

##### 创建新的配置文件
~~~rust
let mut cc = BufData::new();
cc.chgvalue("c1", "value");
cc.chgvalue("c2", "value2");
cc.chgvalue("c3", "value3");
cc.write(None);
~~~
#### 读取配置文件并写入
~~~rust
let mut cc = BufData::Loadfromiii("default.iii");
cc.chgvalue("c3", "ccc3");
cc.chgvalue("c5", "5c");
cc.write(None);
~~~
#### 读取键值
~~~rust
let mut cc = BufData::Loadfromiii("default.iii");
if let Some(v) = cc.getvalue("c2"){
    println!("K:{},V:{}","c2",v);
}
if let Some(v) = cc.getvalue("c5"){
    println!("K:{},V:{}","c5",v);
}
~~~