Genius-pig commented on a change in pull request #1914:
URL: https://github.com/apache/iotdb/pull/1914#discussion_r525648378
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File path: README_ZH.md
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@@ -347,16 +347,19 @@ CREATE TIMESERIES root.fit.d2.s1 WITH
DATATYPE=INT32,ENCODING=RLE;
CREATE TIMESERIES root.fit.d2.s3 WITH DATATYPE=INT32,ENCODING=RLE;
CREATE TIMESERIES root.fit.p.s1 WITH DATATYPE=INT32,ENCODING=RLE;
```
+IoTDB具有类型推断的能力，因此在数据导入前创建元数据不是必须的。但我们仍然推荐在使用CSV导入工具导入数据前创建元数据，因为这可以避免不必要的类型转换错误。
### 从 csv 文件导入数据的示例
```
Time,root.fit.d1.s1,root.fit.d1.s2,root.fit.d2.s1,root.fit.d2.s3,root.fit.p.s1
-1,100,'hello',200,300,400
-2,500,'world',600,700,800
-3,900,'IoTDB',1000,1100,1200
+1,100,hello,200,300,400
+2,500,world,600,700,800
+3,900,IoTDB,1000,1100,1200
```
+> 如果字段中有一些特殊字符，如逗号，字段应该用双引号或单引号括起来。例如, "hello,\"great";
Review comment:
update
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