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			35 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			ReStructuredText
		
	
	
	
	
	
| .. index:: ! contract
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| 
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| .. _contracts:
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| 
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| ##########
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| Contracts
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| ##########
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| 
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| Contracts in Solidity are similar to classes in object-oriented languages. They
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| contain persistent data in state variables, and functions that can modify these
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| variables. Calling a function on a different contract (instance) will perform
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| an EVM function call and thus switch the context such that state variables
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| in the calling contract are
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| inaccessible. A contract and its functions need to be called for anything to happen.
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| There is no "cron" concept in Ethereum to call a function at a particular event automatically.
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| 
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| .. include:: contracts/creating-contracts.rst
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| 
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| .. include:: contracts/visibility-and-getters.rst
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| 
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| .. include:: contracts/function-modifiers.rst
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| 
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| .. include:: contracts/constant-state-variables.rst
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| .. include:: contracts/functions.rst
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| 
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| .. include:: contracts/events.rst
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| 
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| .. include:: contracts/inheritance.rst
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| 
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| .. include:: contracts/abstract-contracts.rst
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| .. include:: contracts/interfaces.rst
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| 
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| .. include:: contracts/libraries.rst
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| 
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| .. include:: contracts/using-for.rst |