These two steps allow me to effectively remove the conditional check in the validate method and let OVal do it for me, as shown in Listing 11.
这两步让我能够有效地去除validate方法中的条件检验，让OVal为我完成这些，如清单11所示。
These two steps allow me to effectively remove the conditional check in the validate method and let OVal do it for me, as shown in Listing 11.
这两步让我能够有效地去除validate方法中的条件检验，让OVal为我完成这些，如清单11所示。
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