1. The amount number is sent from the backend
price:"1111.00" //2, realization effect
3, my own implementation ideas
make the number + into an array and add items with insufficient tables (empty characters), and cycle through the page
implementation is a bit low, is there a good implementation scheme
4, address demonstration
string blanks can be filled using the padStart method of String .
there is still bug. It would be wrong if the data is changed to 1111.0 to show the amount. I think it is still divided into decimal and integer parts, with two decimal places in length, which is not enough to complement 0
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