What are the hash construction methods for numeric keywords?

The hash construction methods of numeric keywords are: 1. Direct addressing method, the syntax is "h(key) = a x key b"; 2. Remainder method, the syntax is "h(key) = key mod p"; 3. Digital analysis method, the syntax is "h(key) = atoi(key 7)".

The symbol table (SymbolTable) is a collection of name (Name)-attribute (Attribute) pairs. The core operations of the symbol table are search, insertion and deletion

Hash construction of numeric keywords

Direct addressing method

h(key) = a x key + b (a、b为常数)

Leave remainder method

h(key) = key mod p

Number Analysis

h(key) = atoi(key + 7)

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