def remove_odd_index_characters(my_str):
    new_string = ""
    i = 0
    while i < len(my_str):
        if (i % 2 == 1):
            i+= 1
            continue

        new_string += my_str[i]
        i+= 1
    return new_string

if __name__ == '__main__':
    my_string = "Hi there Will"

    my_string = remove_odd_index_characters(my_string)
    print("已删除奇数索引的字符")
    print("剩余字符: ")
    print(my_string)

已删除奇数索引的字符
剩余字符：
H hr il