{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to limit the depth of recursive calls in a blockchain?","a":"Set the maximum depth of recursive  calls: When writing smart contracts, you can pre-set the maximum depth of recursive calls, such as 10 layers. When the recursive call reaches the maximum depth, stop the recursion and return the result."}]}],"pr":"f9d4b6391b1e00d1cddd2deb675f27a92fc0b20fcbc25e14f1a9737c0dc7a685"}