import sys msg="qingQIAO_HighSchool" def my_function(???): for i in msg: if 97 <= ??? <= 122: # 对小写字母数值判断 upper_num = ??? - 32 # 转换得到大写字母数值 print(chr(upper_num),end="") # 通过数值返回大写字母并打印 elif ??? : # 对大写字母数值判断，转换成小写字母 ??? ??? else: print(i,end="") # 其他字符不变直接打印 print("转换后的字符串为：",end="") my_function(???)

这段代码中需要填写的内容是函数的参数和函数内部的语句。

根据代码中的提示，函数的参数应该是一个字符串，表示待转换的字符串。因此，函数定义应该为：

def my_function(s):

在函数内部，需要遍历字符串中的每个字符，判断其是否为小写字母或大写字母。如果是小写字母，就转换成大写字母并打印出来；如果是大写字母，就转换成小写字母并打印出来；如果是其他字符，就直接打印出来。根据这个要求，可以将函数内部的语句填写如下：

def my_function(s):
    for i in s:
        if 97 <= ord(i) <= 122:                # 对小写字母数值判断
            upper_num = ord(i) - 32            # 转换得到大写字母数值
            print(chr(upper_num), end="")
        elif 65 <= ord(i) <= 90:                # 对大写字母数值判断，转换成小写字母
            lower_num = ord(i) + 32
            print(chr(lower_num), end="")
        else:
            print(i, end="")
    print("转换后的字符串为：", end="")

最终的代码如下：

import sys

msg = "qingQIAO_HighSchool"

def my_function(s):
    for i in s:
        if 97 <= ord(i) <= 122:                # 对小写字母数值判断
            upper_num = ord(i) - 32            # 转换得到大写字母数值
            print(chr(upper_num), end="")
        elif 65 <= ord(i) <= 90:                # 对大写字母数值判断，转换成小写字母
            lower_num = ord(i) + 32
            print(chr(lower_num), end="")
        else:
            print(i, end="")
    print("转换后的字符串为：", end="")

my_function(msg)