昨日我一開始照以往部署合約時，有發生問題。處理辦法和原因以後再稍做說明。今天還是先來進入部署系統合約後的後續吧！

簡單看一下差異

在部署系統合約後，cleos裡有許多的命令算是可以正式啟用了。eosio.system是當中最主要的合約，他會依賴非常多東西，包含eosio.token。不過如果只是單純開發，可以只部署需要的合約，像是只部署eosio.token。

在部署合約後，最主要的差異在於資源和帳號上，立馬來看一下吧！

無法在透過cleos create account建立帳號

cleos create account eos bob <PUBLIC KEY>

Output:

Error 3080001: Account using more than allotted RAM usage
Error Details:
account alice has insufficient ram; needs 2996 bytes has 0 bytes

在透過cleos create account來建立帳號會報錯。會需要改用下面方式建立帳號：

cleos system newaccount eosio alice <PUBLIC KEY> --stake-net '1000.000 SYS' --stake-cpu '100.000 SYS' --buy-ram '1000.000 SYS'

喔對，還沒發幣呢。上面SYS可不能用

cleos push action eosio.token create '[ "eosio", "1000000000.0000 SYS"]' -p eosio.token@active
cleos push action eosio.token issue '[ "eosio", "1000000000.0000 SYS", "memo" ]' -p eosio@active

你會發現在cleos system newaccount會執行一堆Action。

75554ec2caed404e4ae701aebeb4e16d0f402e089e413506cab82ba4cfb61826  344 bytes  1463 us
#         eosio <= eosio::newaccount            {"creator":"eosio","name":"alice","owner":{"threshold":1,"keys":[{"key":"EOS7U6iSYm5KEet2ZbqEubQLEyt...
#         eosio <= eosio::buyram                {"payer":"eosio","receiver":"alice","quant":"1000.0000 SYS"}
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"995.0000 SYS","memo":"buy ram"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"995.0000 SYS","memo":"buy ram"}
#     eosio.ram <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"995.0000 SYS","memo":"buy ram"}
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"5.0000 SYS","memo":"ram fee"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"5.0000 SYS","memo":"ram fee"}
#  eosio.ramfee <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"5.0000 SYS","memo":"ram fee"}
#         eosio <= eosio::delegatebw            {"from":"eosio","receiver":"alice","stake_net_quantity":"1000.0000 SYS","stake_cpu_quantity":"100.00...
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.stake","quantity":"1100.0000 SYS","memo":"stake bandwidth"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.stake","quantity":"1100.0000 SYS","memo":"stake bandwidth"}
#   eosio.stake <= eosio.token::transfer        {"from":"eosio","to":"eosio.stake","quantity":"1100.0000 SYS","memo":"stake bandwidth"}

包含建立帳戶、購買轉讓資源等等活動。這一系列Action構成newaccount這個Transaction(交易)。在EOSIO的智能合約裡，一個合約活動(Action)是可以去呼叫其他活動，包含不同的合約，整個過程構成一次交易。

除了建立帳號過程不同，這個新建立的帳號也有些不同：

cleos get account alice

Output:

permissions: 
     owner     1:    1 <PUBLIC KEY>
        active     1:    1 <PUBLIC KEY>
memory: 
     quota:     65.14 MiB    used:     2.926 KiB  

net bandwidth: 
     delegated:    1000.0000 SYS           (total staked delegated to account from others)
     used:                 0 bytes
     available:        590.9 GiB  
     limit:            590.9 GiB  

cpu bandwidth:
     delegated:     100.0000 SYS           (total staked delegated to account from others)
     used:                 0 us   
     available:        33.57 hr   
     limit:            33.57 hr   

在各個資源的使用量被加以限制了。