cast wallet new-mnemonic

生成一个随机的 BIP39 助记词

$ cast wallet new-mnemonic --help

用法：cast wallet new-mnemonic [OPTIONS]

选项：
  -w, --words <WORDS>        Number of words for the mnemonic [default: 12]
  -a, --accounts <ACCOUNTS>  Number of accounts to display [default: 1]
  -e, --entropy <ENTROPY>    Entropy to use for the mnemonic
  -h, --help                 Print help