C#简易计算器代码

【文件属性】：

文件名称：C#简易计算器代码

文件大小：599B

文件格式：TXT

更新时间：2017-01-23 09:47:50

C#

try{int fristnum Convert ToInt32 this textBox1 Text ;string choose this textBox3 Text;int secondnum Convert ToInt32 this textBox2 Text ;int sum 0;switch choose {case "+":sum fristnum + secondnum;this textBox4 Text sum ToString ;break;case " ":sum fristnum secondnum;this textBox4 Text sum ToString ;break;case " ":sum fristnum secondnum;this textBox4 Text sum ToString ;break;case " ":sum fristnum secondnum;this textBox4 Text sum ToString ;break;default :this textBox4 Text "无法识别的远算符 ";break;}}catch{MessageBox Show "输入有误 " ;">try{int fristnum Convert ToInt32 this textBox1 Text ;string choose this textBox3 Text;int secondnum Convert ToInt32 this textBox2 Text ;int sum 0;switch choose {case "+":sum fristnum + secondnum;this textBox4 Text sum ToString ;break;case " ":sum fristnum secondnu [更多]