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ch1-03: 修复字符串部分内容

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chai2010 2018-07-02 22:24:06 +08:00
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ch1-basic/ch1-03-array-string-and-slice.md
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@ -177,7 +177,7 @@ s1 := "hello, world"[:5]
s2 := "hello, world"[7:]
```
和数组一样，内置的`len`和`cap`函数返回相同的结果，都对应字符串的长度。也可以通过`reflect.StringHeader`结构访问字符串的长度（这里只是为了演示字符串的结构，并不是推荐的做法）：
字符串和数组类似，内置的`len`函数返回字符串的长度。也可以通过`reflect.StringHeader`结构访问字符串的长度（这里只是为了演示字符串的结构，并不是推荐的做法）：
```go
fmt.Println("len(s):", (*reflect.StringHeader)(unsafe.Pointer(&s)).Len) // 12