March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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以太坊的演进 ｜ 115
gas
限制
你愿意支付给矿工处理你的交易的最大
gas
量。这里指定的气体量应该足
以运行合同函数预期要执行的所有操作码。
Wei
最小的单位以太币（
ETH
），
1 Wei
是
10e-18 ETH
。美元可以被整除到
小数点后
2
位。
ETH
可以被整除到小数点后
18
位。就像美元的最小价值单
位是
1
美分一样，
Wei
是以太坊的最小价值单位。“聪”是比特币最小的价
值单位。
下面是一些更多的面额：
• 1 wei = 1 wei
• 1 kwei = 1000 wei
• 1 mwei = 1000000 wei
• 1 gwei = 1000000000 wei
ETH Gas Station
是一个非常有用的网站，可以根据当前的网络使用情况计
算出你应该支付的
gas
价格。
在前面的智能合约
Guestbook
例子中，我们写了一条测试信息，所需金额如下：
• gas
限制
128050
。
•
交易使用的
gasb
比例
85367
（
66.67%
）。
• gas
价格
0.000000001
以太币（
1 gwei
）。
4.4.3
与代码交互
这里有几个流行的与以太坊网络进行程序化交互的方法。
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