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在Windows 7等旧版本系统上默认不能存在高版本的.net 4,不过有稍微低版本的.net 3.5,低版本的.net的string没有IsNullOrWhiteSpace方法,我反编译了IsNullOrWhiteSpace方法把它加到代码里了,这样方便编译生成兼容性的SharpWxDump。



修改前.net 3.5编译不通过:
Windows 7系统默认有.net 3.5:
修改后.net 3.5编译通过: