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Sie können ein Konto schließen (alle gespeicherten Daten löschen), indem Sie alle SOL. (Weitere Informationen finden Sie unter rent)
use solana_program::{\n account_info::next_account_info, account_info::AccountInfo, entrypoint,\n entrypoint::ProgramResult, pubkey::Pubkey,\n};\n\nentrypoint!(process_instruction);\n\nfn process_instruction(\n _program_id: &Pubkey,\n accounts: &[AccountInfo],\n _instruction_data: &[u8],\n) -> ProgramResult {\n let account_info_iter = &mut accounts.iter();\n\n let source_account_info = next_account_info(account_info_iter)?;\n let dest_account_info = next_account_info(account_info_iter)?;\n\n let dest_starting_lamports = dest_account_info.lamports();\n **dest_account_info.lamports.borrow_mut() = dest_starting_lamports\n .checked_add(source_account_info.lamports())\n .unwrap();\n **source_account_info.lamports.borrow_mut() = 0;\n\n let mut source_data = source_account_info.data.borrow_mut();\n source_data.fill(0);\n\n Ok(())\n}\nlet dest_starting_lamports = dest_account_info.lamports();\n**dest_account_info.lamports.borrow_mut() = dest_starting_lamports\n .checked_add(source_account_info.lamports())\n .unwrap();\n**source_account_info.lamports.borrow_mut() = 0;\n\nlet mut source_data = source_account_info.data.borrow_mut();\nsource_data.fill(0);\nimport {\n Keypair,\n Connection,\n Transaction,\n SystemProgram,\n TransactionInstruction,\n PublicKey,\n clusterApiUrl,\n LAMPORTS_PER_SOL,\n} from "@solana/web3.js";\n\n(async function () {\n // connection\n const connection = new Connection(clusterApiUrl("devnet"), "confirmed");\n\n // setup fee payer\n const feePayer = Keypair.generate();\n const feePayerAirdropSignature = await connection.requestAirdrop(\n feePayer.publicKey,\n LAMPORTS_PER_SOL\n );\n await connection.confirmTransaction(feePayerAirdropSignature);\n\n // remember to deploy your program first\n const programId = new PublicKey(\n "An47uBJ8kY7hzKPzDyRoFSsDHkZFY9vkfUGpTViWqLFz"\n );\n\n // 1. create an account to your program\n let newAccountKeypair = Keypair.generate();\n console.log(`new account: ${newAccountKeypair.publicKey.toBase58()}`);\n\n let createNewAccountTx = new Transaction().add(\n SystemProgram.createAccount({\n fromPubkey: feePayer.publicKey,\n newAccountPubkey: newAccountKeypair.publicKey,\n lamports: 1e8, // 0.1 SOL\n space: 10, // a random value\n programId: programId,\n })\n );\n console.log(\n `create account txhash: ${await connection.sendTransaction(\n createNewAccountTx,\n [feePayer, newAccountKeypair]\n )}`\n );\n\n // 2. close your account\n let closeAccountTx = new Transaction().add(\n new TransactionInstruction({\n keys: [\n {\n pubkey: newAccountKeypair.publicKey,\n isSigner: false,\n isWritable: true,\n },\n {\n pubkey: feePayer.publicKey,\n isSigner: false,\n isWritable: true,\n },\n ],\n programId: programId,\n })\n );\n console.log(\n `close account txhash: ${await connection.sendTransaction(closeAccountTx, [\n feePayer,\n ])}`\n );\n})();\n// 1. create an account to your program\nlet createNewAccountTx = new Transaction().add(\n SystemProgram.createAccount({\n fromPubkey: feePayer.publicKey,\n newAccountPubkey: newAccountKeypair.publicKey,\n lamports: 1e8, // 0.1 SOL\n space: 10, // a random value\n programId: programId,\n })\n);\n\n// 2. close your account\nlet closeAccountTx = new Transaction().add(\n new TransactionInstruction({\n keys: [\n {\n pubkey: newAccountKeypair.publicKey,\n isSigner: false,\n isWritable: true,\n },\n {\n pubkey: feePayer.publicKey,\n isSigner: false,\n isWritable: true,\n },\n ],\n programId: programId,\n })\n);\nimport {\n clusterApiUrl,\n Connection,\n PublicKey,\n LAMPORTS_PER_SOL,\n} from "@solana/web3.js";\n\n(async () => {\n const connection = new Connection(clusterApiUrl("devnet"), "confirmed");\n\n let wallet = new PublicKey("G2FAbFQPFa5qKXCetoFZQEvF9BVvCKbvUZvodpVidnoY");\n console.log(\n `${(await connection.getBalance(wallet)) / LAMPORTS_PER_SOL} SOL`\n );\n})();\nconsole.log(`${(await connection.getBalance(wallet)) / LAMPORTS_PER_SOL} SOL`);\nuse solana_client::rpc_client::RpcClient;\nuse solana_program::native_token::LAMPORTS_PER_SOL;\nuse solana_program::pubkey::Pubkey;\nuse solana_sdk::commitment_config::CommitmentConfig;\nuse std::str::FromStr;\n\nfn main() {\n let rpc_url = String::from("https://api.devnet.solana.com");\n let connection = RpcClient::new_with_commitment(rpc_url, CommitmentConfig::confirmed());\n\n let wallet = Pubkey::from_str("G2FAbFQPFa5qKXCetoFZQEvF9BVvCKbvUZvodpVidnoY").unwrap();\n let balance = connection.get_balance(&wallet).unwrap();\n\n println!(\n "The account {}, has {} SOL ",\n wallet,\n balance / LAMPORTS_PER_SOL\n );\n}\nconnection.get_balance(&wallet).unwrap();\nfrom solders.keypair import Keypair\nfrom solana.rpc.api import Client\n\nclient = Client("https://api.devnet.solana.com")\n\nkey_pair = Keypair()\npublic_key = key_pair.pubkey()\n\nprint(client.get_balance(public_key))\nclient = Client("https://api.devnet.solana.com")\n\nkey_pair = Keypair()\npublic_key = key_pair.pubkey()\n\nclient.get_balance(public_key)\n// clang++ get_balance.cpp -o get_balance -std=c++17 -lssl -lcrypto -lsodium\n\n#include "solana.hpp"\n\nusing namespace many::solana;\n\nint main() {\n Connection connection("https://api.devnet.solana.com");\n\n auto key_pair = Keypair::generate();\n\n auto public_key = key_pair.public_key;\n std::cout << "public_key = " << public_key.to_base58() << std::endl;\n\n uint64_t balance = connection.get_balance(public_key).unwrap();\n std::cout << "balance = " << balance << std::endl;\n\n return 0;\n}\nConnection connection("https://api.devnet.solana.com");\n\nauto key_pair = Keypair::generate();\nauto public_key = key_pair.public_key;\n\nuint64_t balance = connection.get_balance(public_key).unwrap();\nTIP
If you want to get a token balance, you will need to know the address of token account. For more information, see Token References