my_string = "Hi there how are you"

print("该字符串是：")
print(my_string)
index_removed = 2

changed_string = ''

for char in range(0, len(my_string)):
   if(char != index_removed):
      changed_string += my_string[char]

print("删除", index_removed, "号字符后的字符串是：")
print(changed_string)

该字符串是：
Hi there how are you
删除2号字符后的字符串是：
Hithere how are you