Swift报错:“Return from initializer without initializing all stored properties”
structUser{varemail:StringvarfirstName:StringvarlastName:Stringinit(){}}解决方案:给成员变量添加?修饰符使其变成Optional类型,或者赋初始值,或者在init()中进行赋值structUser{varemail:String?varfirstName:String?varlastName:String?init(){}}s