1、useContractRead

useContractRead主要就是用来调用合约的读取方法的，比如solidity里面带有view和pure的方法，是不需要gas费的。 参数address是合约地址，在区块浏览器可以查询到 参数abi就是合约的ABI，在区块浏览器可以查询到 chainId就是要查询的链，不填的话默认是当前链， functionName是方法名称，可以看一下ABI上有哪些方法， args就是方法所需的参数，参数一定要和方法对应，否则会报错的哈。

import {useContractRead, erc20ABI,erc721ABI,erc4626ABI, } from 'wagmi'
import bigTimeABI from '../../assets/abi/bigTimeABI.json'

const index: React.FC = () => {
    const abi = JSON.parse(bigTimeABI.result) 
    //const abi = erc20ABI
    const result = useContractRead({
        address: '0x64Bc2cA1Be492bE7185FAA2c8835d9b824c8a194',
        abi,
        chainId就是要查询的链，不填的话默认是当前链，
        : 1,
        functionName: 'balanceOf',
        args: ['0x0dxxxxxxxxxxxxxxxxxxxxxxxxxxxx'],
    })
    return ( );
};

返回结果如下：

2、useContractReads

可以同时调用多个合约读取方法。

   const result = useContractReads({
        contracts: [
            {
                address: '0x64Bc2cA1Be492bE7185FAA2c8835d9b824c8a194',
                abi,
                chainId: 1,
                functionName: 'balanceOf',
                args: ['0x0dxxxxxxxxxxxxxxxxxxxxxxxxxxxx'],
            },
            {
                address: '0x64Bc2cA1Be492bE7185FAA2c8835d9b824c8a194',
                abi,
                chainId: 1,
                functionName: 'balanceOf',
                args: ['0x0dyyyyyyyyyyyyyyyyyyyyyyyyyy'],
            }
        ]
    })

返回结果如下：

3、useContractInfiniteReads

useContractInfiniteReads主要是用来读取合约带有分页返回值的方法， 比如有1000条数据，但是默认只返回100条，有10页，这种方法就适合用这个hook， 我这里暂时没有这种例子，所以就不实验了。

4、useContractWrite

useContractWrite调用合约的可写方法，调用的话数据会上链，是需要gas费的。 useContractWrite会返回write方法，调用write方法才会写入。

import { Layout, Button, Row } from 'antd';
import React from 'react';
import {useAccount, useContractWrite, useContractRead, erc20ABI,erc721ABI,erc4626ABI, Address, } from 'wagmi'

const index: React.FC = () => {
    const accountInfo = useAccount();
    let fromAddress:Address = accountInfo?.address as Address;
    let toAddress:Address = '0xyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy'
    let contractAddress:Address = '0x47cE7E72334Fe164954D4f9dd95f3D20A26e8e2b'
    const abi = erc20ABI

    function balanceOf(address:Address){
        const balance = useContractRead({
            address: contractAddress,
            abi,
            chainId: 80001,  //polygon mumbai测试网
            functionName: 'balanceOf',
            args: [address],
            onSuccess(data) {
                console.log(address, data)
            },
        })
    }
    balanceOf(fromAddress)
    balanceOf(toAddress)

    const {write} = useContractWrite({
        address: contractAddress,
        abi,
        chainId: 80001,
        functionName: 'transfer',
        args: [toAddress, BigInt(0.1 * 10**18)],
        onSuccess(data) {
            console.log('转成成功', data)
        },
    })
    return (
        <Layout>
            <Row>
                <w3m-button />
            </Row>
            <Row>
            <Button disabled={!write} onClick={() => write?.()}>转账</Button>
            </Row>

        </Layout>
    );
};

export default index;

调用write方法以后，会消耗gas：

方法调用成功以后，会调用传参的onSuccess方法

5、useContractEvent

useContractEvent是监听某个合约的某个事件

useContractEvent({
        chainId: 1,   //链ID
        address: '0x64Bc2cA1Be492bE7185FAA2c8835d9b824c8a194',  //合约地址
        abi: erc20ABI,   //合约ABI
        eventName: 'Transfer',   //事件名称
        listener(log) {        //监听回调，监听事件以后，会调用这个方法
          console.log(log)
        },
    })

listener返回值如下：