docs: update a link
@@ -218,7 +218,7 @@ The SDK provides the following tools to generate the corresponding C interface c
|\<SDKRoot\>/tools/platoneSolidity2c.py |Generate C calling code according to PlatONE (Solidity) ABI |
|\<SDKRoot\>/tools/platoneWASM2c.py |Generate C calling code according to PlatONE (WASM) ABI |
-Contract programming languages generally support "object-oriented". However, since C language does not support "object-oriented" and cannot use a unified paradigm to transfer objects, only contract functions whose parameter types are consistent with the built-in types of C language can be converted into C calling code by tools. The specific input types of support contract functions are described in the [Contract Call (Automatically Generated)](#contract-call-(automatically-generated)) chapter.
+Contract programming languages generally support "object-oriented". However, since C language does not support "object-oriented" and cannot use a unified paradigm to transfer objects, only contract functions whose parameter types are consistent with the built-in types of C language can be converted into C calling code by tools. The specific input types of support contract functions are described in the [Contract Call (Automatically Generated)](#contract-call-automatically-generated) chapter.
Before making the call, you first need to compile the contract, and copy the ABI interface description JSON file generated in the contract compilation to the corresponding directory of the SDK:
