How to set SMS signature on Apple mobile phone?

For Apple 4S, setting SMS signature is very simple: click Settings-General-Keyboard-Add a new phrase (enter the phrase you want to give to the other party), and then click Enter-enter two easy-to-remember letters. -Last point: storage. It's over. For example, I want to send my phrase (unit: XXXX, name: XXXX, email address: XXXX) to the other party. My input code is KK. After writing the theme, you can start a new line. Type KK, and then click the space to build it.

There are also SMS sending skills of Apple iPhone. Please refer to Baidu's experience:

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