dty9731 2016-08-25 15:55
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Golang:以独特的方式打印字符串数组

I want a function func format(s []string) string such that for two string slices s1 and s2, if reflect.DeepEqual(s1, s2) == false, then format(s1) != format(s2).

If I simply use fmt.Sprint, slices ["a", "b", "c"] and ["a b", "c"] are all printed as [a b c], which is undesirable; and there is also the problem of string([]byte('4', 0, '2')) having the same representation as "42".

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  • dongpu1879 2016-08-25 16:09
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    Use a format verb that shows the data structure, like %#v. In this case %q works well too because the primitive types are all strings.

    fmt.Printf("%#v
    ", []string{"a", "b", "c"})
    fmt.Printf("%#v
    ", []string{"a b", "c"})
    
    // prints
    // []string{"a", "b", "c"}
    // []string{"a b", "c"}
    
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