这次自己开始研究EOS本就是因为ram的大涨才开始的，还是觉得自己落后了，EOS不管什么原因至少已经火了这么久了，早就应该更深入的了解一下，只是因为工作太忙（又在给自己找理由）一直没有腾出时间来，今天来看看怎么从cleos来买卖ram吧！
买卖命令
买入ram
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com system buyram steemchaimyu steemchaimyu "0.1 EOS"
卖出ram
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com system sellram steemchaimyu 10000
实际操作
自己都觉得自己是韭菜...
转帐
想办法（因为大部分交易所不让提EOS）从交易所转了一笔EOS，记录如下：
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com get block 4145591
{
"timestamp": "2018-07-04T16:15:02.500",
"producer": "eos42freedom",
"confirmed": 0,
"previous": "003f41b6ef7162f778ea2c4329f4866a43eea2694457eae4b613f7bf08db89be",
"transaction_mroot": "4b27e860639535ba43ffbb7725aa36add8cd3a62e27316511ab06d2352e1eec2",
"action_mroot": "ff7d76e48af191d450eb0c059007f3374e17423044d1a66944353a442a771167",
"schedule_version": 105,
"new_producers": null,
"header_extensions": [],
"producer_signature": "SIG_K1_KdMK6mWeK3FtVpXBSreXE8wuhkthH46mutTez1EWxcRSWAP4j5gNJnRBw99NnJqaVsZKEHfrksWavz5scaSRaFZSaoacaj",
"transactions": [{
"status": "executed",
"cpu_usage_us": 1026,
"net_usage_words": 16,
"trx": {
"id": "f6a0c4f8b85b76ece03416777dd1a83b521412caedb34b404ea38d46775af30d",
"signatures": [
"SIG_K1_K8iwhrAzQb1SpH2usuhbc5KG5YdKqWCaFuDS9YJQ4VUt8EEoGuuyqqXpUBAxWt9SAJ4buUJqi23xAAZvMQweoVEPmiKHvg"
],
"compression": "none",
"packed_context_free_data": "",
"context_free_data": [],
"packed_trx": "fef23c5b6d40f70ce796000000000100a6823403ea3055000000572d3ccdcd012029ca34a17c50a600000000a8ed3232212029ca34a17c50a6a0bd74a621a954c6ec4702000000000004454f53000000000000",
"transaction": {
"expiration": "2018-07-04T16:17:02",
"ref_block_num": 16493,
"ref_block_prefix": 2531724535,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [],
"actions": [{
"account": "eosio.token",
"name": "transfer",
"authorization": [{
"actor": "otcbtcdotcom",
"permission": "active"
}
],
"data": {
"from": "otcbtcdotcom",
"to": "steemchaimyu",
"quantity": "14.9484 EOS",
"memo": ""
},
"hex_data": "2029ca34a17c50a6a0bd74a621a954c6ec4702000000000004454f530000000000"
}
],
"transaction_extensions": []
}
}
}
],
"block_extensions": [],
"id": "003f41b71616aed6877bd42f5a1a7b849948fead6d6954b35e5dcc0b7b51effa",
"block_num": 4145591,
"ref_block_prefix": 802454407
}
EOS到帐速度倒是很快，我从ETH转交易所花了1个小时，这又是对比了...
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com get currency balance eosio.token steemchaimyu EOS
14.9484 EOS
买入RAM
下跌三浪、上涨区间50%反弹位置，虽然我现在都快不信这些指标了，但有指标总比没指标好，那就进！
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com system buyram steemchaimyu steemchaimyu "1 EOS"
1990046ms thread-0 main.cpp:429 create_action ] result: {"binargs":"a0bd74a621a954c6a0bd74a621a954c6102700000000000004454f5300000000"} arg: {"code":"eosio","action":"buyram","args":{"payer":"steemchaimyu","receiver":"steemchaimyu","quant":"1.0000 EOS"}}
executed transaction: e3c89137369e08004569a006c4961ec51a725f5854b10f5850882522e11fa9f0 128 bytes 2162 us
# eosio <= eosio::buyram {"payer":"steemchaimyu","receiver":"steemchaimyu","quant":"1.0000 EOS"}
# eosio.token <= eosio.token::transfer {"from":"steemchaimyu","to":"eosio.ram","quantity":"0.9950 EOS","memo":"buy ram"}
# steemchaimyu <= eosio.token::transfer {"from":"steemchaimyu","to":"eosio.ram","quantity":"0.9950 EOS","memo":"buy ram"}
# eosio.ram <= eosio.token::transfer {"from":"steemchaimyu","to":"eosio.ram","quantity":"0.9950 EOS","memo":"buy ram"}
# eosio.token <= eosio.token::transfer {"from":"steemchaimyu","to":"eosio.ramfee","quantity":"0.0050 EOS","memo":"ram fee"}
# steemchaimyu <= eosio.token::transfer {"from":"steemchaimyu","to":"eosio.ramfee","quantity":"0.0050 EOS","memo":"ram fee"}
# eosio.ramfee <= eosio.token::transfer {"from":"steemchaimyu","to":"eosio.ramfee","quantity":"0.0050 EOS","memo":"ram fee"}
warning: transaction executed locally, but may not be confirmed by the network yet
再看看买入的交易数据：
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com get block 4147776
{
"timestamp": "2018-07-04T16:33:15.000",
"producer": "jedaaaaaaaaa",
"confirmed": 0,
"previous": "003f4a3fc6168dbd9bceb5c14a701ea38c47c12954f130db420f44829294b279",
"transaction_mroot": "1794bdafb47c4efa5b802eb97bf7a0acaa440d131ac298a5e36846697eefd23f",
"action_mroot": "9d7aadd8343de0653a8e0973ebe0af30b2414905fc12090a550a24395adbcf67",
"schedule_version": 105,
"new_producers": null,
"header_extensions": [],
"producer_signature": "SIG_K1_JzrjFTYGHHBDa12CBQ75M1wae4QUu3E4wuZNiGUnS5fm1GergQpiV7UiNPNYHWaEiLfKeuyVzgDTC1FoddAsjftQ2juCFN",
"transactions": [{
"status": "executed",
"cpu_usage_us": 3103,
"net_usage_words": 16,
"trx": {
"id": "e3c89137369e08004569a006c4961ec51a725f5854b10f5850882522e11fa9f0",
"signatures": [
"SIG_K1_KeiMPhLtmYSjPSQ7Tuu5EghYPg1RJtbzbejFP1S1nUz76ktodEucJd6xX5aycrECVw2Jcd19XbGvPvPUkTdqG2X8UYoaf6"
],
"compression": "none",
"packed_context_free_data": "",
"context_free_data": [],
"packed_trx": "e5f63c5be94856cccf4a00000000010000000000ea3055000000004873bd3e01a0bd74a621a954c600000000a8ed323220a0bd74a621a954c6a0bd74a621a954c6102700000000000004454f530000000000",
"transaction": {
"expiration": "2018-07-04T16:33:41",
"ref_block_num": 18665,
"ref_block_prefix": 1255132246,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [],
"actions": [{
"account": "eosio",
"name": "buyram",
"authorization": [{
"actor": "steemchaimyu",
"permission": "active"
}
],
"data": {
"payer": "steemchaimyu",
"receiver": "steemchaimyu",
"quant": "1.0000 EOS"
},
"hex_data": "a0bd74a621a954c6a0bd74a621a954c6102700000000000004454f5300000000"
}
],
"transaction_extensions": []
}
}
}
],
"block_extensions": [],
"id": "003f4a40a4e7991b4148ba68af62559cef0a8a4d41cae90ae3f031f4d994d891",
"block_num": 4147776,
"ref_block_prefix": 1757038657
}
从交易数据中可以看到付费人、接收人、数量。
用以下命令可以看到更详细交易数据：
./cleos -u https://api.cypherglass.com get transaction e3c89137369e08004569a006c4961ec51a725f5854b10f5850882522e11fa9f0
再看看ram容量：
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com get account steemchaimyu
permissions:
owner 1: 1 EOS721oMgkFUbKLHfbt3DGUSWVE4mMavHx8n6Fdw9aExg2Ls4dsVv
active 1: 1 EOS721oMgkFUbKLHfbt3DGUSWVE4mMavHx8n6Fdw9aExg2Ls4dsVv
memory:
quota: 5.756 KiB used: 3.051 KiB
net bandwidth:
delegated: 0.0500 EOS (total staked delegated to account from others)
used: 129 bytes
available: 26.08 KiB
limit: 26.21 KiB
cpu bandwidth:
delegated: 0.0500 EOS (total staked delegated to account from others)
used: 3.104 ms
available: 2.016 ms
limit: 5.12 ms
与之前的对比：
(env3) Chaim:cleos Chaim$ ./cleos -u https://api.cypherglass.com get account steemchaimyu
permissions:
owner 1: 1 EOS721oMgkFUbKLHfbt3DGUSWVE4mMavHx8n6Fdw9aExg2Ls4dsVv
active 1: 1 EOS721oMgkFUbKLHfbt3DGUSWVE4mMavHx8n6Fdw9aExg2Ls4dsVv
memory:
quota: 3.497 KiB used: 2.926 KiB
net bandwidth:
delegated: 0.0500 EOS (total staked delegated to account from others)
used: 0 bytes
available: 26.21 KiB
limit: 26.21 KiB
cpu bandwidth:
delegated: 0.0500 EOS (total staked delegated to account from others)
used: 0 us
available: 5.119 ms
limit: 5.119 ms
1EOS买了2.259K，合0.4427EOS/K，这个操作还用掉了0.125K，还有手续费0.005EOS，这样得0.4686EOS/K了。
网络带宽用了129bytes，CPU带宽用了3.104ms。
结论
买卖RAM整个操作起来还是很麻烦的，一般人估计也没有这个功夫来这样玩，写文章时现在EOS用户有252461人，真正买卖的又有多少人呢，这样价格也很容易被操纵，大涨大跌短期是必然的。
还有更麻烦的是，也不能指定价格，也不能挂买卖单，这方面有机会吗？我看是应该有，除了很多钱包上了RAM买卖外，不还有ZB、OTCBTC的主动上EOSRAM吗！
参考
更多数据格式参考官网，官网提供了cURL、Node、Ruby、JavaScript、Python等访问方式示例：
https://developers.eos.io/eosio-nodeos/reference
感谢您阅读 