Xcode 各个版本的官方下载链接
需要先登录 https://developer.apple.com/downloads/ 这里面什么工具都有
Xcode7.2 http://adcdownload.apple.com/Developer_Tools/Xcode_7.2/Xcode_7.2.dmg
Xcode7.1 http://adcdownload.apple.com/Developer_Tools/Xcode_7.1/Xcode_7.1.dmg
Xcode7.1 beta2 http://adcdownload.apple.com/Developer_Tools/Xcode_7.1_beta_2/Xcode_7.1_beta_2.dmg
Xcode 7 http://adcdownload.apple.com/Developer_Tools/Xcode_7/Xcode_7.dmg
Xcode 6.4 http://adcdownload.apple.com/Developer_Tools/Xcode_6.4/Xcode_6.4.dmg
Xcode 6.3.2 http://adcdownload.apple.com/Developer_Tools/Xcode_6.3.2/Xcode_6.3.2.dmg
Xcode 6.3.1 http://adcdownload.apple.com/Developer_Tools/Xcode_6.3.1/Xcode_6.3.1.dmg
Xcode 6.3 http://adcdownload.apple.com/Developer_Tools/Xcode_6.3/Xcode_6.3.dmg
Xcode 6.2 http://adcdownload.apple.com/Developer_Tools/Xcode_6.2/Xcode_6.2.dmg
Xcode 6.1.1 http://adcdownload.apple.com/Developer_Tools/xcode_6.1.1/xcode_6.1.1.dmg
Xcode 6.1 http://adcdownload.apple.com/Developer_Tools/xcode_6.1/56841_xcode_6.1.dmg
Xcode 6.0.1 http://adcdownload.apple.com/Developer_Tools/xcode_6.0.1/xcode_6.0.1.dmg
Xcode 5.1 http://adcdownload.apple.com/Developer_Tools/xcode_5.1/xcode_5.1.dmg