快速掌握C#语言基础知识点（13.语句）

关注我的动态using System.Diagnostics.Tracing; namespace _13.语句 { internal class Program { static void Main(string[] args) { //1.赋值语句 int a 1; //2.表达式语句 bool b 1 2; //3.块语句 { int c 1; string d hello; } //4.if语句 if (1 0) { } //5.if else 语句 if (1 0) { } else { } //6.if elseif ..else 语句 int e 90; if (e 90) { } else if (e 80) { } else if (e 60) { } else { } //for语句 int[] f { 1, 2, 3, 4, 5, 6 }; var i 0; for (i 0; i f.Length; i) { int tem f[i]; } //foreach迭代语句 foreach (var item in f) { int tem item; } //while语句 i 0; while (i f.Length) { int tem f[i]; } //do...while语句 i 0; do { int tem f[i]; } while (i f.Length); //switch语句 string abc 1; switch (abc) { case 1: abc 1; break; case 2: abc 2; break; case 3: abc 3; break; default: break; } //continue语句 for (i 0; i f.Length; i) { if (i % f.Length 1) { continue;//跳过 } Console.WriteLine(f[i]); } //break语句 for (i 0; i f.Length; i) { if (i 3) { break;//退出循环 } Console.WriteLine(f[i]); } //goto语句 i 0; Loop: if (i10) goto Loop; //方法调用语句 Console.WriteLine(Hello World!!!); } } }