Solidity开发基础.pdf-资料库

Solidity Solidity Solidity·Gavin Wood2014·Christian Reitwiessner SolidityECMAScript ECMAScript JavaCJSSolidity Solidity contract Test { } contract TEST { } Solidityvar uint8n string function add() { var a = 1; // a = 1000; var b = "b"; } Solidityvar Solidity

// /*)*/ @dev @param @return /** * @dev * * @param bytes32Array * @param intArray * @param uintArray * * @return uint * @return bytes * @return uint */ function insertEnterpriseEntity(bytes32[] bytes32Array, int[] intArray, uint[] uintArray) public returns(uint, bytes, uint) { // 1 uint hyperUserCheck = _hyperUserAddress2HyperUser[msg.sender].hyperUserRol e; if (hyperUserCheck != SUPERUSER) { return (ERROR, "", 0); } // 1 hyperUserCheck = _hyperUserAddress2HyperUser[msg.sender].hyperUserState; if (hyperUserCheck != NORMAL) { return (ERROR, "", 0); } EnterpriseEntity memory newEnterpriseEntity; uint insertedCount = 0; uint b = 0; uint i = 0; uint u = 0; while (b < bytes32Array.length || i < intArray.length || u < uintArray.len gth) { // newEnterpriseEntity.enterpriseNo = hyperSubArray(bytes32Array, b, uint Array[u]);

b += uintArray[u++]; newEnterpriseEntity.enterpriseName = hyperSubArray(bytes32Array, b, ui ntArray[u]); b += uintArray[u++]; newEnterpriseEntity.legalPerson = hyperSubArray(bytes32Array, b, uintA rray[u]); b += uintArray[u++]; newEnterpriseEntity.enterpriseType = intArray[i]; ++i; newEnterpriseEntity.timestamp = intArray[i]; ++i; // if (_enterpriseNo2EnterpriseEntity[newEnterpriseEntity.enterpriseNo[0] ][newEnterpriseEntity.enterpriseNo[1]].enterpriseNo.length != 0) { return (ERROR, "", insertedCount); } // hyperPushSetElement(_enterpriseNoInEnterpriseEntitySet, newEnterpriseE ntity.enterpriseNo); // _enterpriseNo2EnterpriseEntity[newEnterpriseEntity.enterpriseNo[0]][ne wEnterpriseEntity.enterpriseNo[1]] = newEnterpriseEntity; // ++insertedCount; } return (SUCCESS, "", insertedCount); } {} contract Test { uint a; function testA() { if (a == 0) { a = 1; } } } Solidity

contract Test { // uint a = b = 1; } _$ uint test; uint $test; uint $1; uint _$te$t2; Solidityvar var sTest = 1; sTest2 = sTest + 2; ECMA-262 ECMAScript keyword ECMAScript / Solidity break continue delete () do for function if else new return this throw var while with

switch case default try catch ﬁnally void typeof in instanceof abstract after ﬁnal in inline let match null of relocatable static type typeof Solidity stack heappoint Solidityinterface - - - -

remixSolidity http://github.com/chriseth/browser-solidity remixreleasenightlyreleasenightly https://github.com/ethereum/remix-ide NPM / node.js Solidity SolidityEmscriptenJavaScriptC++JavaScript NPM npm install solc https://github.com/ethereum/solc-js http://solidity.readthedocs.io/en/latest/installing-solidity.html pragma solidity ^0.4.0 0.4 ^0.5bug0.4.1 bug0.4.2

* import “filename”; * import * as symbolName from “filename” // import “filename” as symbolName import {symbol1 as alias, symbol2} from “filename” . SourceUnit = (PragmaDirective | ImportDirective | ContractDefinition)* // Pragma actually parses anything up to the trailing ';' to be fully forward-comp atible. PragmaDirective = 'pragma' Identifier ([^;]+) ';' ImportDirective = 'import' StringLiteral ('as' Identifier)? ';' | 'import' ('*' | Identifier) ('as' Identifier)? 'from' StringLiteral ';' | 'import' '{' Identifier ('as' Identifier)? ( ',' Identifier ('as' Identi fier)? )* '}' 'from' StringLiteral ';' ContractDefinition = ( 'contract' | 'library' | 'interface' ) Identifier ( 'is' InheritanceSpecifier (',' InheritanceSpecifier )* )? '{' ContractPart* '}' ContractPart = StateVariableDeclaration | UsingForDeclaration | StructDefinition | ModifierDefinition | FunctionDefinition | EventD efinition | EnumDefinition InheritanceSpecifier = UserDefinedTypeName ( '(' Expression ( ',' Expression )* ') ' )? StateVariableDeclaration = TypeName ( 'public' | 'internal' | 'private' | 'constan t' )? Identifier ('=' Expression)? ';' UsingForDeclaration = 'using' Identifier 'for' ('*' | TypeName) ';'

StructDefinition = 'struct' Identifier '{' ( VariableDeclaration ';' (VariableDeclaration ';')* )? '}' ModifierDefinition = 'modifier' Identifier ParameterList? Block ModifierInvocation = Identifier ( '(' ExpressionList? ')' )? FunctionDefinition = 'function' Identifier? ParameterList ( ModifierInvocation | StateMutability | 'external' | 'public ' | 'internal' | 'private' )* ( 'returns' ParameterList )? ( ';' | Block ) EventDefinition = 'event' Identifier IndexedParameterList 'anonymous'? ';' EnumValue = Identifier EnumDefinition = 'enum' Identifier '{' EnumValue? (',' EnumValue)* '}' IndexedParameterList = '(' ( TypeName 'indexed'? Identifier? (',' TypeName 'indexe d'? Identifier?)* )? ')' ParameterList = '(' ( TypeName Identifier? (',' TypeName Identifier?)* )? ')' TypeNameList = '(' ( TypeName (',' TypeName )* )? ')' // semantic restriction: mappings and structs (recursively) containing mappings // are not allowed in argument lists VariableDeclaration = TypeName StorageLocation? Identifier TypeName = ElementaryTypeName | UserDefinedTypeName | Mapping | ArrayTypeName | FunctionTypeName UserDefinedTypeName = Identifier ( '.' Identifier )* Mapping = 'mapping' '(' ElementaryTypeName '=>' TypeName ')' ArrayTypeName = TypeName '[' Expression? ']' FunctionTypeName = 'function' TypeNameList ( 'internal' | 'external' | StateMutabi lity )* ( 'returns' TypeNameList )? StorageLocation = 'memory' | 'storage' StateMutability = 'pure' | 'constant' | 'view' | 'payable' Block = '{' Statement* '}' Statement = IfStatement | WhileStatement | ForStatement | Block | InlineAssemblySt atement | ( DoWhileStatement | PlaceholderStatement | Continue | Break | Return | Throw | SimpleStatement ) ';'

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