以下是一个示例代码，用于遍历字符串并打印字符之间的距离：

def print_distance(string):
    current_index = 0
    for i in range(len(string)-1):
        current_char = string[i]
        next_char = string[i+1]
        distance = ord(next_char) - ord(current_char)
        print(f"The distance between '{current_char}' and '{next_char}' is {distance}")
        current_index += 1

# 示例用法
input_string = "abcde"
print_distance(input_string)

运行上述代码将输出：

The distance between 'a' and 'b' is 1
The distance between 'b' and 'c' is 1
The distance between 'c' and 'd' is 1
The distance between 'd' and 'e' is 1

这段代码遍历了给定的字符串，并计算了每对相邻字符之间的距离。距离是通过将字符转换为其ASCII码值，并计算差值来计算的。在每次迭代中，它会打印出每对字符和它们之间的距离。