不利用函数实现大小写互换 ----python

#第一种利用asscci的方式def ssum(strs):    result = ''    for i in strs:   #遍历        if  65<= ord(i) <= 90:            result += chr(ord(i)+ 32)        elif 97 <= ord(i) <= 122:            result += chr(ord(i) - 32)        else:            result += i    return resultls = str('niHGFDSccv  号码  NNiiiu')a = ssum(ls)print(a)

#第二种比较简单，但是比较麻烦def togglecase(s):    result = ''    ls = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']    ls1 = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']    for i in s:        if i in ls :            result += ls1[ls.index(i)]        if i in ls1:            result += ls[ls1.index(i)]        else:            result += i    return resultvar = 'you jump i jump 你不跳我也不跳'r = togglecase(var)print(r)