RF（四则运算及 Evaluate 用法）

1、四则运算

${res1}    Set Variable    ${10 + 10}
log    ${res1}    
${res2}    Set Variable    ${10 - 3}
log    ${res2}    
${res3}    Set Variable    ${10 * 10}
log    ${res3}    
${res4}    Set Variable    ${10 / 10}
log    ${res4}    
${res5}    Set Variable    ${10 % 2}
log    ${res5}    
${res6}    Set Variable    ${10 // 3}
log    ${res6}    
${res7}    Set Variable    ${2 ** 3}
log    ${res7}    

# 结果如下
20201105 10:57:45.344 :  INFO : ${res1} = 20
20201105 10:57:45.345 :  INFO : 20
20201105 10:57:45.346 :  INFO : ${res2} = 7
20201105 10:57:45.346 :  INFO : 7
20201105 10:57:45.347 :  INFO : ${res3} = 100
20201105 10:57:45.347 :  INFO : 100
20201105 10:57:45.348 :  INFO : ${res4} = 1.0
20201105 10:57:45.349 :  INFO : 1.0
20201105 10:57:45.350 :  INFO : ${res5} = 0
20201105 10:57:45.350 :  INFO : 0
20201105 10:57:45.351 :  INFO : ${res6} = 3
20201105 10:57:45.352 :  INFO : 3
20201105 10:57:45.352 :  INFO : ${res7} = 8
20201105 10:57:45.353 :  INFO : 8

2、Evaluate 作用：

• Evaluate 关键字进行运算

${var1}    Set Variable    7
${var2}    Set Variable    3
${res1}    Evaluate    ${var1} + ${var2}
log    ${res1}    
${res2}    Evaluate    ${var1} - ${var2}
log    ${res2}    
${res3}    Evaluate    ${var1} * ${var2}
log    ${res3}    
${res4}    Evaluate    ${var1} / ${var2}
log    ${res4}    
${res5}    Evaluate    ${var1} ** ${var2}
log    ${res5}    
${res6}    Evaluate    ${var1} % ${var2}
log    ${res6}    
${res7}    Evaluate    ${var1} // ${var2}
log    ${res7}    

# 结果如下
20201105 11:01:31.487 :  INFO : ${res1} = 10
20201105 11:01:31.487 :  INFO : 10
20201105 11:01:31.488 :  INFO : ${res2} = 4
20201105 11:01:31.489 :  INFO : 4
20201105 11:01:31.490 :  INFO : ${res3} = 21
20201105 11:01:31.491 :  INFO : 21
20201105 11:01:31.491 :  INFO : ${res4} = 2.3333333333333335
20201105 11:01:31.492 :  INFO : 2.3333333333333335
20201105 11:01:31.493 :  INFO : ${res5} = 343
20201105 11:01:31.494 :  INFO : 343
20201105 11:01:31.495 :  INFO : ${res6} = 1
20201105 11:01:31.495 :  INFO : 1
20201105 11:01:31.497 :  INFO : ${res7} = 2
20201105 11:01:31.498 :  INFO : 2

${res1}    Evaluate    1 + 2
log    ${res1}    
${res2}    Evaluate    10 - 3
log    ${res2}    
${res3}    Evaluate    10 * 3
log    ${res3}    
${res4}    Evaluate    10 / 5
log    ${res4}    
${res5}    Evaluate    2 ** 3
log    ${res5}    
${res6}    Evaluate    10 % 5
log    ${res6}    
${res7}    Evaluate    10 // 4
log    ${res7}    

# 结果如下
20201105 11:40:39.105 :  INFO : ${res1} = 3
20201105 11:40:39.106 :  INFO : 3
20201105 11:40:39.106 :  INFO : ${res2} = 7
20201105 11:40:39.107 :  INFO : 7
20201105 11:40:39.108 :  INFO : ${res3} = 30
20201105 11:40:39.108 :  INFO : 30
20201105 11:40:39.109 :  INFO : ${res4} = 2.0
20201105 11:40:39.110 :  INFO : 2.0
20201105 11:40:39.110 :  INFO : ${res5} = 8
20201105 11:40:39.111 :  INFO : 8
20201105 11:40:39.112 :  INFO : ${res6} = 0
20201105 11:40:39.112 :  INFO : 0
20201105 11:40:39.113 :  INFO : ${res7} = 2
20201105 11:40:39.114 :  INFO : 2

• 直接运行 Python 脚本
  • 直接运行使用 Python 中的函数

${name}    Set Variable    duoceshi    
${name1}    Evaluate    "${name}".upper()    # 字母大写
log    ${name1}        
${type}    Evaluate    type("${name}")    
log    ${type}

# 结果如下
20201105 11:37:42.382 :  INFO : ${name} = duoceshi
20201105 11:37:42.383 :  INFO : ${name1} = DUOCESHI
20201105 11:37:42.384 :  INFO : DUOCESHI
20201105 11:37:42.385 :  INFO : ${type} = <class 'str'>
20201105 11:37:42.385 :  INFO : <class 'str'>        

• •  使用 Python 中模块函数　　

${time}    Evaluate    time.strftime("%Y-%m-%d %H:%M:%S")    time
log    ${time}        

# 结果如下
20201105 11:07:08.735 :  INFO : ${time} = 2020-11-05 11:07:08
20201105 11:07:08.736 :  INFO : 2020-11-05 11:07:08

${value}    Evaluate    xlrd.open_workbook(r"D:\cms_data.xlsx").sheet_by_name("Sheet1").cell_value(1, 1)    xlrd
log    ${value}        

# 结果如下
20201105 11:12:28.994 :  INFO : ${value} = dcs123456
20201105 11:12:28.995 :  INFO : dcs123456