The use of a call by name parameter implies a textual substitution of the formal parameter name by the actual parameter.
使用名字调用时,包含有用参数对形式参数进行原文替换的意思。
For each reference to a formal parameter in the body of the procedure, a call of this thunk appears.
程序体中每当引用形式参数时,就调用形实替换程序。
For each reference to a formal parameter in the body of the procedure, a call of this thunk appears.
程序体中每当引用形式参数时,就调用形实替换程序。
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