"We Are Happy"

"We%20Are%20Happy"

/**
 * 替换字符串
 *
 * @param s string字符串
 * @return string字符串
 */
func replaceSpace(s string) string {
    res := ""
    for _, v := range s {
        if v == ' ' {
            res += "%20"
        } else {
            res += string(v)
        }
    }
    return res
}