C语言是普适性最强的一种计算机程序编辑语言,它不仅可以发挥出高级编程语言的功用,还具有汇编语言的优点,计算和的方法为:
1、新建一个求1到100自然数之和项目。
![](https://iknow-pic.cdn.bcebos.com/8601a18b87d6277f32805c5d27381f30e824fcc1?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、添加一个cpp文件。
![](https://iknow-pic.cdn.bcebos.com/9345d688d43f8794c17f214bdd1b0ef41ad53ad6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、包含需要用到的头文件。
![](https://iknow-pic.cdn.bcebos.com/ac4bd11373f08202de5bf85a44fbfbedaa641b8d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、输入main函数。
![](https://iknow-pic.cdn.bcebos.com/ac4bd11373f08202d9e0f95a44fbfbedab641b60?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、定义两个变量,分别是:a和sum。
![](https://iknow-pic.cdn.bcebos.com/dbb44aed2e738bd415dfdb54ae8b87d6267ff9dd?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、使用while语句计算1到100之间所有自然数之和。
![](https://iknow-pic.cdn.bcebos.com/3c6d55fbb2fb4316a0e8141f2fa4462308f7d3e4?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
7、运行程序,打印出结果。
![](https://iknow-pic.cdn.bcebos.com/d53f8794a4c27d1ebad755a114d5ad6edcc438e5?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
注意事项:
C语言的语法限制不太严格,对变量的类型约束不严格,影响程序的安全性,对数组下标越界不作检查等。从应用的角度,C语言比其他高级语言较难掌握。也就是说,对用C语言的人,要求对程序设计更熟练一些。