Compound Statements (Blocks)

A compound statement consists of zero or more statements enclosed in curly braces ({ }). A compound statement can be used anywhere a statement is expected. Compound statements are commonly called "blocks."

{ [ statement-list ] }

Remarks

The following example uses a compound statement as the statement part of the if statement (see The if Statement for details about the syntax):

if( Amount > 100 )
{
    cout << "Amount was too large to handle\n";
    Alert();
}
else
    Balance -= Amount;

备注

Because a declaration is a statement, a declaration can be one of the statements in the statement-list. As a result, names declared inside a compound statement, but not explicitly declared as static, have local scope and (for objects) lifetime. See Scope for details about treatment of names with local scope.

See Also

Reference

Overview of C++ Statements