1. package main
    3. import "fmt"
    5. func testCalc(str string) (charCount, spaceCount, numberCount, otherCount int) {
    6.     utfChars := []rune(str)
    8.     for i := 0; i < len(utfChars); i++ {
    10.         if (utfChars[i] >= 'a' && utfChars[i] <= 'z') || (utfChars[i] >= 'a' && utfChars[i] <= 'z') {
    11.             charCount++
    12.             continue
    13.         }
    14.         if utfChars[i] >= '0' && utfChars[i] <= '9' {
    15.             numberCount++
    16.             continue
    17.         }
    18.         if utfChars[i] == ' ' {
    19.             spaceCount++
    20.             continue
    21.         }
    22.         otherCount++
    24.     }
    25.     return
    26. }
    28. func testExample()  {
    29.     str := "dssd 世界 22"
    30.     charCount,numCount,spCount,other := testCalc(str)
    31.     fmt.Printf("charCount =%d,numCount = %d,spCount =%d,other = %d",charCount,numCount,spCount,other)
    32. }
    34. func main() {
    35. testExample()
    36. }

    输出结果:
    charCount =4,numCount = 2,spCount =2,other = 2