```go
reader := bufio.NewReader(strReader)
r, _ = reader.ReadString('\n')
//r, _ = reader.ReadString([]byte("\n")[0])
```
第一个报错：cannot use reader.ReadString('\n') (value of type string) as type rune in assignment
第二个报错：cannot use reader.ReadString([]byte("\n")[0]) (value of type string) as type rune in assignment
go版本1.19.3，上面这两种方法不都是没错的吗？
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123445
2048tb.com
```go
reader := bufio.NewReader(strings.NewReader("abc\ndgdg\nsdfhdsf"))
//r, _ := reader.ReadString('f')
r, _ := reader.ReadString([]byte("b")[0])
log.Println(r)
```
奇了怪了，换个电脑，同样的版本，就没问题
#1
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