变量 s:="123"
要得到s中字符串 1+2+3 的值
package main
import (
"fmt"
)
func main() {
var s = "123"
sum := 0
for i := 0; i < len(s); i++ {
sum += int(s[i] - 48)
}
fmt.Println(s, sum)
}
#7
更多评论
```
package main
import (
"strconv"
"fmt"
)
func main() {
var s = "987654321"
var result = 0
re, _ := strconv.Atoi(s)
for i := re; i > 0; i /= 10 {
result += i % 10
}
fmt.Println(result)
}
```
#1