解析流程：
1. 配置Excel
2. 读取解析Excel (引用Excel.dll, ICSharpCode.SharpZipLib.dll)
3. 重新整理解析到的数据
4. 创建Excel对应的C#类，声明变量
5. 在类的构建函数中给变量赋值
6. 保存类文件，可在游戏直接使用
优点：
1. 每个Excel对应一个类，使用灵活，对Excel限制少
2. 自动创建脚本，不需要对每个Excel手动写代码
3. 数据值直接写到脚本里，方便查看，可以手动修改调整，不需要每次改动都在Excel里操作
4. 在游戏内直接调用类，不需要额外操作
缺点：
1. 表格格式确定后不能轻易修改，改动可能影响类的结构，代码报错
2. 因为是把数据直接写入到脚本内，数据量较大时可能会有问题
具体流程：
1. 配置Excel
格式：
预留前两行，可以写一些备注；第三行为数据格式；第四行为变量名字，第五行以后是数据内容
第一列为id，后面每一列为一个变量
Sheet页的名字，是创建类的类名
2. 解析Excel
3. 整理数据
解析Excel时，是按照行顺序，一行一行解析的，将每行数据记录下来，方式有很多，能满足使用要求即可
//注释说明
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO;
using Excel;
using System.Reflection;
using System;
using System.Text;
using System.Linq;
public class ExcelReader
{
const int excelTypeRow = 3;
const int excelNameRow = 4;
static string excelFilePath = Application.dataPath + "/Excel";
static string excelCodePath = Application.dataPath + "/Script/Excel/AutoCreate";
public static void Read()
{
//读取所有Excel文件
string[] excelFiles = Directory.GetFiles(excelFilePath, "*.xlsx");
if (excelFiles.Length == 0)
{
Debug.Log("Excel file count == 0");
return;
}
//代码类
List<KeyValuePair<string, string>> codeList = new List<KeyValuePair<string, string>>();
//遍历所有Excel
for (int i = 0; i < excelFiles.Length; i++)
{
//打开Excel
string excelFile = excelFiles[i];
FileStream stream = File.Open(excelFile, FileMode.Open, FileAccess.Read);
//解析Excel
IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
if (!excelReader.IsValid)
{
Debug.Log("Invalid excel ： " + excelFile);
continue;
}
string[] propertyTypes = null;
string[] propertyNames = null;
List<List<KeyValuePair<string, string>>> allItemRowList = new List<List<KeyValuePair<string, string>>>();
int rowIndex = 1;
//开始读取
while (excelReader.Read())
{
//读取每一行的数据
string[] datas = new string[excelReader.FieldCount];
for (int j = 0; j < excelReader.FieldCount; ++j)
{
datas[j] = excelReader.GetString(j);
}
//空行不处理
if (datas.Length == 0 || string.IsNullOrEmpty(datas[0]))
{
rowIndex++;
continue;
}
if (rowIndex == excelTypeRow)
{
//行数据表示类型
propertyTypes = datas;
}
else if (rowIndex == excelNameRow)
{
//行数据表示变量名
propertyNames = datas;
}
else if (rowIndex > excelNameRow)
{
//行数据表示变量值
List<KeyValuePair<string, string>> itemList = new List<KeyValuePair<string, string>>();
//遍历一行里的每个数据
//for (int j = 0; j < datas.Length; ++j)
//{
// if (j >= names.Length)
// continue;
// //读取数据
// itemList.Add(new KeyValuePair<string, string>(names[j], datas[j]));
//}
for (int j = 0; j < propertyNames.Length; j++)
{
if (j < datas.Length)
itemList.Add(new KeyValuePair<string, string>(propertyNames[j], datas[j]));
else
itemList.Add(new KeyValuePair<string, string>(propertyNames[j], null));
}
allItemRowList.Add(itemList);
}
rowIndex++;
}
if (propertyNames == null || propertyNames.Length == 0
|| propertyTypes == null || propertyTypes.Length == 0
|| propertyNames.Length != propertyTypes.Length)
continue;
//变量对应的所有值
Dictionary<string, List<string>> propertyValueDic = new Dictionary<string, List<string>>();
for (int k = 0; k < propertyNames.Length; k++)
{
propertyValueDic.Add(propertyNames[k], new List<string>());
}
for (int m = 0; m < allItemRowList.Count; m++)
{
for (int n = 0; n < allItemRowList[m].Count; n++)
{
propertyValueDic[allItemRowList[m][n].Key].Add(allItemRowList[m][n].Value);
}
}
//类名
string className = excelReader.Name + "Table";
//根据数据生成C#脚本
ScriptGenerator generator = new ScriptGenerator(className, propertyNames, propertyTypes, propertyValueDic);
string codeStr = generator.CreateCode();
//生成的类
codeList.Add(new KeyValuePair<string, string>(className, codeStr));
}
if (!Directory.Exists(excelCodePath))
Directory.CreateDirectory(excelCodePath);
for (int i = 0; i < codeList.Count; i++)
{
string className = codeList[i].Key;
string codeStr = codeList[i].Value;
StreamWriter sw = new StreamWriter(excelCodePath + "/" + className + ".cs");
sw.WriteLine(codeStr);
sw.Close();
}
UnityEditor.AssetDatabase.Refresh();
Debug.Log("<color=green>Auto Scripts Success : </color>" + codeList.Count);
}
}4. 创建C#类
5. 变量赋值
创建脚本，这里采用拼接字符串的方式，变量赋值也是拼接的字符串，然后将拼接好的文本保存为".cs"文件
在参考链接中是生成dll文件，这种方式感觉高级一些
方法有很多，不局限于这两种，能实现功能就好
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Text;
using System;
public class ScriptGenerator
{
//脚本生成器
string className;
string[] propertyNames;
string[] propertyTypes;
Dictionary<string, List<string>> propertyValueDic;
public ScriptGenerator(string tableName, string[] names, string[] types, Dictionary<string, List<string>> valueDic)
{
className = tableName;
propertyNames = names;
propertyTypes = types;
propertyValueDic = valueDic;
}
//创建代码
public string CreateCode()
{
//生成类
StringBuilder classSource = new StringBuilder();
classSource.Append("/*Auto create, Don't Edit it*/\n");
classSource.Append("\n");
classSource.Append("using System;\n");
classSource.Append("using System.Reflection;\n");
classSource.Append("using System.Collections.Generic;\n");
classSource.Append("\n");
classSource.Append("[Serializable]\n");
classSource.Append("public class " + className + " : TableBase\n");
classSource.Append("{\n");
//声明变量
for (int i = 0; i < propertyNames.Length; i++)
{
classSource.Append(PropertyString(propertyNames[i], propertyTypes[i]));
}
//构造函数内赋值
classSource.Append("\n");
classSource.Append("\tpublic " + className + "()\n");
classSource.Append("\t{\n");
for (int i = 0; i < propertyNames.Length; i++)
{
classSource.Append(Assignment(propertyNames[i], propertyTypes[i], propertyValueDic[propertyNames[i]]));
}
classSource.Append("\t}\n");
//Get方法
classSource.Append("\n");
classSource.Append("\tint targetIndex;\n");
classSource.Append("\n");
for (int i = 0; i < propertyNames.Length; i++)
{
if (propertyNames[i] == "id")
continue;
classSource.Append("\tpublic " + propertyTypes[i] + " Get" + propertyNames[i].ToUpper() + "(string targetId)\n");
classSource.Append("\t{\n");
classSource.Append("\t\ttargetIndex = id.IndexOf(targetId);\n");
classSource.Append("\t\tif (targetIndex < 0)\n");
classSource.Append("\t\t\treturn default;\n");
classSource.Append("\t\treturn " + propertyNames[i] + "[targetIndex];\n");
classSource.Append("\t}\n");
}
//
classSource.Append("}\n");
return classSource.ToString();
}
private string PropertyString(string name, string type)
{
if (string.IsNullOrEmpty(name))
return null;
if (type == "int")
type = "List<int>";
else if (type == "float")
type = "List<float>";
else
type = "List<string>";
string propertyStr = "\tpublic " + type + " " + name + ";\n";
return propertyStr;
}
private string Assignment(string name, string type, List<string> valueList)
{
StringBuilder source = new StringBuilder();
source.Append("\t\t" + name + " = new List<" + type + ">()\n");
source.Append("\t\t{\n");
source.Append("\t\t\t");
Func<string, string> CheckPropertyAct;
if (type == "int")
CheckPropertyAct = CheckPropertyInt;
else if (type == "float")
CheckPropertyAct = CheckPropertyFloat;
else
CheckPropertyAct = CheckPropertyString;
for (int i = 0; i < valueList.Count; i++)
{
source.Append(CheckPropertyAct(valueList[i]) + ", ");
}
source.Append("\n");
source.Append("\t\t};\n");
return source.ToString();
}
private string CheckPropertyInt(string value)
{
return Convert.ToInt32(value).ToString();
}
private string CheckPropertyFloat(string value)
{
return Convert.ToSingle(value) + "f";
}
private string CheckPropertyString(string value)
{
return "\"" + value + "\"";
}
}
6. 把脚本文本保存为".cs"文件，在游戏里就可以直接使用咯~
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理论改良版：
1. 还是将Excel转为对应的C#类，不过只创建数据List（或者Dictionary），不赋值，即不保存数据，只记录数据类型
2. 将Excel数据用txt、json或byte二进制保存到本地（json的话可以对应类的格式）
3. 读取数据时初始化对应的类，获取Excel数据进行赋值
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改良进阶版：
