1. Under the sogou input method, right-click the status bar to find sogou;

2, find the emoji-symbol daquan, and then click;

3. Enter "Wave" in the search box in the upper right corner to find the wave line in the results on the left. Use it a little bit.

Method 2:

1. Right-click the status bar of sogou and select Soft Keyboard-Punctuation;

2. After opening, you can find the wavy line in the soft keyboard, and you can click it when using it.

Tip: "~" can be used as an abbreviation letter, a phonetic symbol or a single word. Mathematically, it is a mathematical symbol representing equivalence relation. In the final use (especially in lexicography), it is sometimes used as a font size.