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UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image_left"]]; imgView.frame = CGRectMake(0, 0, 20, 20); _textField.leftView = imgView; _textField.leftViewMode = UITextFieldViewModeAlways;
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原文地址：http://www.cnblogs.com/zouyingying/p/4403069.html
