Go language Gets the number of string elements

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1: Gets The number of string bytes and outputs them in bytes

var str string = "abc Zhang Xin"  //32-bit PC, total 9 bytes Charray: = []byte (str)    ///Convert to byte: One byte corresponds to an array element FMT. Println (Len (Charray))//Gets the number of elements, the result is 9for _, V: = Range Charray {fmt. Printf ("%c", v)//output result: abcå¼é«}

2: Gets the number of string elements and outputs them as elements

A: = "I love flag, does it?" B: = []rune (a)      //Convert to Rune: One character corresponds to one element (22 total) fmt. Println (len (b))//Gets the number of elements (in) for _, V2: = range B {fmt. Printf ("%c", v2)//output: I love flag.