##1.扫描类实例
iban:XE19RLALTH48S5S586M44YMOU1PBEVJ3BS4?amount=100&token=GNB
iban:XE19RLALTH48S5S586M44YMOU1PBEVJ3BS4?amount=0.001
iban:XE19RLALTH48S5S586M44YMOU1PBEVJ3BS4?amount=0.01&token=ETH
ethereum:0xeC34C8681972b22a79f641F42CFdb0e22BFFcd64?contractAddress=0x0d8775f648430679a709e98d2b0cb6250d2887ef&decimal=18&value=1000000000000000